Gear pump
HENGYUHANG Cast Iron Hydraulic Gear Pump CB-FC Series
Engineered with high-tensile alloy steel hardened gears, self-compensating dual-metal thrust plates, and heavy-duty DU composite journal bushings, the HENGYUHANG CB-FC Series hydraulic gear pump delivers exceptional volumetric efficiency (≥ 92%), low operational noise, and reliable high-pressure fluid delivery with a rated continuous pressure of 20 MPa (200 bar / 2,900 psi) and maximum peak pressure of 25 MPa (250 bar / 3,625 psi).
| Applications
Optimized for rigorous fluid power circuits across engineering, mining, lifting, transport, and agricultural equipment, the CB-FC Series serves as the primary hydraulic power unit for wheel loaders, forklifts, dump trucks, truck-mounted cranes, road rollers, and tractor implements. Featuring a standardized 2-bolt diamond mounting flange (pilot Ø 85 mm), versatile parallel keyed or 4-spline drive shafts, and flexible rear-cover porting options (H1 side-in/out or H2 end-in/out with M33×2 and M27×2 metric ports), it provides direct 1:1 OEM drop-in interchangeability across premier mobile machinery brands.
| Key Technical Specifications
Product Model: Hengyuhang Cast Iron Hydraulic Gear Pump CB-FC Series
Brand Replacement: Heli, Hangcha, Lonking, XCMG, SANY, Zoomlion, YTO, Changyuan, Wanyuan, Parker, Shimadzu OEM or as requested.
Displacement: 10, 18, 25, 32, 40, 50, and 63 cm³/rev across 6 standardized model displacements (CB-FC10 to CB-FC63)
Rotation Direction: Clockwise (R, standard default), counter-clockwise (L) (viewed from drive shaft end)
Speed Range: Minimum speed 600 r/min; Rated speed 2,000 r/min; Maximum permissible speed up to 3,000 r/min
Peak Pressure: Rated working pressure 20 MPa (200 bar / 2,900 psi); Maximum peak pressure 25 MPa (250 bar / 3,625 psi)
| Overview of HENGYUHANG CB-FC Series Hydraulic Gear Pumps
The HENGYUHANG CB-FC Series represents an advanced, high-efficiency external hydraulic gear pump engineered specifically to deliver dependable, high-pressure fluid power under severe mechanical shock, high vibration, and demanding duty cycles. Available across six standardized displacements — 10, 18, 25, 32, 40, and 50 cm³/rev — the CB-FC Series operates at a continuous rated pressure of 20 MPa (200 bar / 2,900 psi) with peak pressure capability reaching 25 MPa (250 bar / 3,625 psi), providing flow rates from 20 l/min up to 100 l/min at rated 2,000 r/min.
At the core of the pump, high-strength alloy steel gears with precision case-hardened, micro-ground tooth profiles ensure smooth power transmission, minimal flow pulsation, low acoustic emissions, and prolonged service life. The rotating assembly is housed in a rigid, high-strength structural body with heavy-duty cast iron front and rear covers, providing exceptional resistance to pressure fatigue and cavitation wear. Advanced hydrostatic axial and radial clearance self-compensation mechanisms, supported by specialized bimetallic wear-resistant side thrust plates, dynamically adjust running clearances across operating temperatures, maintaining volumetric efficiencies above 92% over thousands of operating hours. Furthermore, low-friction DU composite material journal bushings and high-performance elastomeric seals ensure low starting torque, superior sealing integrity, and outstanding thermal stability in harsh industrial and mobile environments.
| Dimension of HENGYUHANG CB-FC Series Hydraulic Gear Pumps
| Interface Data Needed with the Drawing Across the 6 Models
| Interface / Feature Item | Engineering Specification & Dimensional Callout | Standard Options & Details |
|---|---|---|
| Mounting Flange Type | Code A — 2-Bolt Diamond (Rhomboid) Flange | Standard pilot spigot diameter: Ø 85 mm (tolerance −0.036 / −0.090 mm); Pilot spigot height: 6.5 mm; Mounting hole center-to-center spacing: 106 mm; Overall width: 150 mm; Fixing through-holes: 2-Ø 13 mm |
| Drive Shaft 1: Rectangular Spline | Code H — 4-Tooth Rectangular Splined Shaft | 4 splines, spline width: 4.0 mm (tolerance −0.011 / −0.044 mm); Major diameter: Ø 20 mm (tolerance −0.02 / −0.04 mm); Minor diameter: Ø 16 mm (tolerance 0 / −0.05 mm); Effective spline length: 28 mm; Shaft extension length: 45 ± 0.5 mm |
| Drive Shaft 2: Parallel Keyed | Code P (or P2) — Straight Cylindrical Keyed Shaft | Shaft diameter: Ø 20 mm (tolerance −0.02 / −0.04 mm); Parallel key width: 6.0 mm (tolerance 0 / −0.03 mm); Key length: 25 mm; Keyway overall height: 22.5 mm (tolerance 0 / −0.20 mm) / depth 16.5 mm; Shaft extension length: 36 mm |
| Inlet Port (Suction M) | Metric Threaded Port | Thread specification: M33 × 2 metric parallel thread with O-ring sealing face |
| Outlet Port (Pressure M) | Metric Threaded Port | Thread specification: M27 × 2 metric parallel thread with O-ring sealing face |
| Port Orientation & Location | Code H1 or H2 on Rear Cover | H1: Rear-cover side-positioned inlet and outlet ports (side-in, side-out); H2: Rear-cover axial end-positioned inlet and outlet ports (rear-in, rear-out) |
| Direction of Rotation | Code R (Right / Clockwise) or L (Left / Counter-Clockwise) | R: Clockwise rotation viewed looking at the drive shaft end (standard default); L: Counter-clockwise rotation viewed looking at the drive shaft end |
| Bearing Bushings | Heavy-Duty DU Composite Bushings | Low starting friction, self-lubricating, high load-carrying capacity composite bushings |
| Sealing System | High-Performance Elastomeric Seals | Premium NBR / FKM seals ensuring zero leakage under rated pressure |
| Pump Installation Specifications
| Modular Model Ordering Code Structure
CB−FC□−□□□□
CB−FC[Displacement]−[Mounting Flange][Port Form][Shaft Type][Rotation]
| Position / Segment | Code Element | Description & Available Options |
|---|---|---|
| Product Model Series | CB-FC | High-pressure hydraulic gear pump series (CB-FC Series) |
| Displacement Code | 10, 18, 25, 32, 40, 50 | Nominal displacement (cm³/rev): 10 = 10 cm³/rev; 18 = 18 cm³/rev; 25 = 25 cm³/rev; 32 = 32 cm³/rev; 40 = 40 cm³/rev; 50 = 50 cm³/rev |
| Mounting Flange Form | A | A = Standard 2-bolt diamond (rhomboid) flange, pilot Ø 85 mm |
| Inlet & Outlet Port Form | H1, H2 | H1 = Rear-cover side inlet and outlet ports (Inlet M33 × 2, Outlet M27 × 2); H2 = Rear-cover end (axial rear face) inlet and outlet ports (Inlet M33 × 2, Outlet M27 × 2) |
| Drive Shaft Extension Form | P, H | P (or P2) = Straight parallel keyed shaft (Ø 20 mm, key 6 × 25 mm); H = 4-tooth rectangular splined shaft (Ø 20 mm / Ø 16 mm, spline width 4 mm) |
| Direction of Rotation | R, L | R = Clockwise rotation (viewed on drive shaft, default if omitted); L = Counter-clockwise rotation (viewed on drive shaft) |
| Reading Your Replacement Code
| Target Equipment / Replacement Code | HENGYUHANG Equivalent | Direct Interchange & Fitment Verification |
|---|---|---|
| CB-FC10-A-H1-P-R | CB-FC10-A-H1-P-R | Direct 1:1 drop-in: 10 cm³/rev, diamond flange Ø85 mm, side ports M33/M27, Ø20 mm keyed shaft, clockwise rotation |
| CB-FC18-A-H1-H-R | CB-FC18-A-H1-H-R | Direct 1:1 drop-in: 18 cm³/rev, diamond flange Ø85 mm, side ports M33/M27, 4-spline shaft H, clockwise rotation |
| CB-FC25-A-H2-P-L | CB-FC25-A-H2-P-L | Direct 1:1 drop-in: 25 cm³/rev, diamond flange Ø85 mm, rear-end ports M33/M27, keyed shaft P, counter-clockwise rotation |
| CB-FC32-A-H1-P-R | CB-FC32-A-H1-P-R | Direct 1:1 drop-in: 32 cm³/rev, diamond flange Ø85 mm, side ports M33/M27, Ø20 mm keyed shaft, clockwise rotation |
| CB-FC40-A-H1-H-R | CB-FC40-A-H1-H-R | Direct 1:1 drop-in: 40 cm³/rev, diamond flange Ø85 mm, side ports M33/M27, 4-spline shaft H, clockwise rotation |
| CB-FC50-A-H1-P-R | CB-FC50-A-H1-P-R | Direct 1:1 drop-in: 50 cm³/rev, diamond flange Ø85 mm, side ports M33/M27, Ø20 mm keyed shaft, clockwise rotation |
| Heli / Hangcha Forklift 2–3.5T Gear Pump | CB-FC25 / CB-FC32 Series | Exact replacement for standard material handling mast lift and tilt hydraulic systems |
| Wheel Loader / Dump Truck Auxiliary Pump | CB-FC40 / CB-FC50 Series | Direct bolt-on fit for steering assist, pilot circuits, and hydraulic tipping bodies |
Techspecs of HENGYUHANG CB-FC Series
4.1 Performance Data Across Displacements
| Model Number | Nominal Displacement (ml/r) | Rated Pressure (MPa / bar) | Maximum Pressure (MPa / bar) | Minimum Speed (r/min) | Rated Speed (r/min) | Maximum Speed (r/min) | Volumetric Efficiency (≥%) | Theoretical Flow at 2000 r/min (l/min) | Actual Flow at Rated Pressure (l/min) |
|---|---|---|---|---|---|---|---|---|---|
| CB-FC10 | 10 | 20 / 200 | 25 / 250 | 600 | 2,000 | 3,000 | 92% | 20.0 | ≥18.4 |
| CB-FC18 | 18 | 20 / 200 | 25 / 250 | 600 | 2,000 | 3,000 | 92% | 36.0 | ≥33.1 |
| CB-FC25 | 25 | 20 / 200 | 25 / 250 | 600 | 2,000 | 3,000 | 92% | 50.0 | ≥46.0 |
| CB-FC32 | 32 | 20 / 200 | 25 / 250 | 600 | 2,000 | 3,000 | 92% | 64.0 | ≥58.8 |
| CB-FC40 | 40 | 20 / 200 | 25 / 250 | 600 | 2,000 | 3,000 | 92% | 80.0 | ≥73.6 |
| CB-FC50 | 50 | 20 / 200 | 25 / 250 | 600 | 2,000 | 3,000 | 92% | 100.0 | ≥92.0 |
4.2 Operating Pressure & Speed Limits
| Parameter | Permissible Operational Limit | Engineering Operating Conditions |
|---|---|---|
| Rated Operating Pressure (pₙₒₘ) | 20 MPa (200 bar / 2,900 psi) | Continuous permissible working pressure in heavy cyclic mobile duty |
| Maximum Peak Pressure (pₘₐₓ) | 25 MPa (250 bar / 3,625 psi) | Transient peak pressure spikes (t≤10 s) |
| Speed Range Limits | 600 to 3,000 r/min | Rated continuous operating speed: 2,000 r/min; minimum self-priming speed: 600 r/min |
| Suction Port Inlet Pressure | −0.03 to +0.05 MPa (−0.3 to +0.5 bar) | Measured at pump inlet port to prevent cavitation at maximum speeds |
| Drive Shaft Radial / Axial Loads | Minimal direct radial/axial load | Flexible coupling connection recommended; direct belt/pulley drive requires external support |
4.3 Fluid & Filtration Specifications
| Parameter | Permissible Operating Limits | Optimal Recommended Target |
|---|---|---|
| Recommended Hydraulic Fluid | Anti-wear mineral hydraulic oil (ISO VG 46 / VG 68; HM / HV types) | High-quality HM 46 anti-wear hydraulic oil |
| Operating Viscosity Range | ν=10 to 300 mm²/s (cSt) | νₒₚₜ=20 to 60 mm²/s (cSt) |
| Operating Fluid Temperature | −20 ∘C to +80 ∘C (−4 ∘F to +176 ∘F) | +30 ∘C to +60 ∘C (+86 ∘F to +140 ∘F) |
| Filtration Rating (Inlet / Suction) | ≤100 μm wire mesh suction strainer | Prevents coarse particle ingress |
| Filtration Rating (Pressure / Return) | ≤25 μm (β₂₅≥75) | Target fluid cleanliness: ISO 4406 Class 19/16 |
Advantages of HENGYUHANG CB-FC Series Hydraulic Gear Pumps
Automatic Clearance Compensation for High Volumetric Efficiency
Dual-metal side wear plates with hydrostatic pressure balancing dynamically compensate for axial and radial thermal expansion and mechanical deflections, sustaining volumetric efficiency above 92% under continuous high pressure.
Hardened Alloy Steel Gears with Ultra-Low Noise Profile
Precision-hobbed and case-hardened alloy steel gear sets feature optimized tooth engagement micro-geometry, ensuring smooth rotational torque transfer, minimal fluid pulsation, and significantly lower acoustic decibels.
High-Strength Hybrid Structural Integrity
Incorporates a heavy-duty extruded high-tensile housing combined with precision-cast iron end covers, providing exceptional fatigue strength and resistance to burst pressures up to 25 MPa (250 bar).
Low-Friction DU Composite Bushings
Utilizes self-lubricating DU composite journal bearings that minimize startup friction, resist galling under boundary lubrication, and deliver superior durability under shock loads.
Versatile Mounting & Porting Architecture
Standardized 2-bolt diamond flange (pilot Ø85 mm) with optional 4-spline (H) or parallel keyed (P) drive shafts and dual rear port configurations (H1 side / H2 rear end) adapts effortlessly to tight engine compartments.
100% Factory Tested with Guaranteed OEM Interchangeability
Every pump undergoes computerized dynamometer testing across speed, pressure hold, and volumetric output before dispatch, providing guaranteed 1:1 drop-in replacement for domestic and international machinery.
Reference
6.1 Displacement & Model Matrix
Displacements Available: 10, 18, 25, 32, 40, and 50 cm³/rev (CB-FC10, CB-FC18, CB-FC25, CB-FC32, CB-FC40, CB-FC50).
Mounting Configuration: Code A 2-bolt diamond flange (pilot Ø85 mm, 2-Ø13 mm holes at 106 mm centers).
Port Configurations:
H1: Rear-cover side ports (Inlet M33×2, Outlet M27×2).
H2: Rear-cover axial end ports (Inlet M33×2, Outlet M27×2).
Drive Shaft Configurations:
Code H: 4-spline rectangular shaft (Ø20 mm / Ø16 mm, spline width 4 mm, length 28 mm).
Code P / P2: Cylindrical keyed shaft (Ø20 mm, key 6×25 mm, extension 36 mm).
Rotation Direction: Clockwise (R, standard) and Counter-clockwise (L).
6.2 Target Brand Interchangeability Matrix
The HENGYUHANG CB-FC Series provides verified 1:1 dimensional, hydraulic, and mounting interchangeability across premier mobile and industrial equipment:
Forklift Hydraulic Systems: Heli, Hangcha, Lonking, Baoli, Dalian, Tailift, TCM 1.5T–3.5T forklifts (main mast lift and steering pump circuits).
Construction & Earthmoving Machinery: XCMG, SANY, Zoomlion, Liugong, SDLG, Lonking wheel loaders, mini-excavators, and road compaction rollers.
Agricultural Machinery: YTO, Foton Lovol, Dongfeng, Wuzheng, Shifeng tractors and combine harvesters.
Mining & Lifting Transport: Dump trucks, hydraulic tail-lifts, hydraulic winches, and truck-mounted cranes.
Hydraulic Pump Manufacturers: Direct interchange for Changyuan Hydraulic, Hefei Wanyuan, Jinan Shanda, Yuci, Parker Commercial Intertech, Shimadzu, and Kayaba gear pumps.
Brand Replacement & Interchangeability
The HENGYUHANG CB-FC Series hydraulic gear pump is manufactured as an exact 1:1 form-fit-function replacement for OEM gear pumps utilized extensively across global material handling, earthmoving, and agricultural machinery. Machined to exacting micro-tolerances on advanced 4-axis and 5-axis CNC machining centers, each CB-FC pump features identical pilot spigot dimensions (Ø 85 mm), bolt hole centerlines (106 mm), drive shaft splines/keys (Ø 20 mm), and port thread configurations (M33×2 inlet, M27×2 outlet).
This guarantees immediate drop-in replacement into existing hydraulic tanks, engine PTO brackets, and bell-housing interfaces without structural cutting, piping alterations, or bracket re-machining. Plant maintenance managers, fleet equipment operators, and spare parts distributors achieve substantial maintenance cost reductions, expedited delivery times, and prolonged operational reliability under the most demanding field conditions.
Applications
Forklifts & Material Handling: Primary hydraulic supply for 1.5–3.5 ton diesel and electric forklifts, powering mast elevation, tilting cylinders, side shifters, and hydraulic steering circuits.
Wheel Loaders & Compact Earthmovers: Auxiliary hydraulic circuits for pilot control systems, hydraulic steering boosters, and implement attachments.
Dump Trucks & Transport Equipment: Hydraulic power supply for tipping hoist cylinders, hydraulic tailgate lifters, and garbage compactor mechanisms.
Agricultural Tractors & Harvesters: Hydraulic three-point linkage lifting systems, front-end loader attachments, and hydraulic power steering circuits on 40–100 HP tractors.
Road Construction & Compaction Rollers: Hydraulic power steering, blade angling, and auxiliary roller vibration control circuits.
Mining & Drilling Machinery: Auxiliary fluid power supply for underground haulers, drilling rig positioning cylinders, and mobile material conveyors.
Package & Shipping
| Packaging Construction | Heavy-duty shockproof corrugated carton with internal custom-molded high-density EPE foam cradles; batch orders packed in fumigation-free wooden export crates |
| Corrosion Protection | Internal factory fluid testing preservation, external anti-rust oil treatment, and vapor corrosion inhibitor (VCI) sealed plastic protective wrapping |
| Port & Shaft Protection | Heavy-duty threaded plastic port sealing plugs for M33×2 and M27×2 ports, plus rigid plastic drive shaft protective sleeves |
| Individual Pump Weight | Approx. 8.5 kg (CB-FC10) up to 12.0 kg (CB-FC50) depending on displacement |
| Standard Dispatch Lead Time | In-stock configurations dispatched within 48–72 hours; volume OEM custom batches dispatched in 10–15 business days |
| Global Shipping Options | Express air courier (DHL, FedEx, UPS, TNT) for emergency repairs; Ocean FCL/LCL and Air freight for commercial wholesale distribution |
| Quality & Export Documentation | Factory inspection report, certificate of conformity, and custom OEM private-label branding supported |
Why Choose Hengyuhang?
Direct Factory Precision Manufacturing & CNC Excellence: Manufactured in our modern production facility equipped with high-of-the-art 4-axis and 5-axis CNC machining centers, automated gear hobbing, and CNC gear tooth profile grinding (Ra < 0.2 μm) to ensure superior surface finish, ultra-tight internal clearances, and maximum volumetric efficiency.
100% Full-Cycle Multi-Parameter Factory Inspection: Every single pump undergoes computerized testing before packaging, verifying flow rate at rated speed, volumetric efficiency (≥92%), mechanical efficiency, continuous and peak pressure hold, internal bypass, and noise spectrum. Zero untested units leave the factory.
Seamless 1:1 OEM Drop-In Interchangeability: Dimensionally matched to international and domestic machinery standards, providing 1:1 direct mechanical interchangeability across premier global brands (Heli, Hangcha, Lonking, XCMG, SANY, Parker, Shimadzu, etc.) with zero mounting modifications required.
Flexible Engineering Customization & Rapid Prototyping: Supported by a senior fluid power engineering team, offering custom displacement combinations, specialized shaft tapers, splines, integrated priority or relief valves, and non-standard port orientations with rapid sample prototyping and low MOQ requirements.
Robust Supply Chain, Extensive Inventory & Fast Global Dispatch: Extensive raw material stock of high-grade ductile cast iron castings, alloy steel gear sets, and bearing assemblies enables rapid assembly and 48–72 hour dispatch for emergency breakdown replacements, supported by complete export logistics.
12-Month Comprehensive Warranty & Lifetime Technical Support: All pumps are backed by a comprehensive 12-month manufacturer warranty against defects in materials and workmanship, supplemented by 24/7 engineering consultation, CAD drawing verification, and lifecycle technical assistance.
HENGYUHANG Cast Iron Hydraulic Gear Pump CB-FC Series (High-Pressure Fixed Displacement External Gear Pump, 10.00~63.00 mL/r) is a high-performance, heavy-duty external hydraulic gear pump engineered specifically for demanding fluid power circuits in modern mobile machinery, industrial equipment, and material handling vehicles. Manufactured by Quanzhou Hengyuhang Power Technology Co., Ltd., the CB-FC Series features high-strength cast iron front and rear end covers paired with an optimized rigid body casing, hardened alloy steel precision gear sets, and heavy-duty composite DU DU-bushings that minimize startup friction torque while delivering exceptional wear resistance under severe operating conditions. The pump incorporates automatic axial and radial clearance compensation mechanisms equipped with high-strength bimetallic side wear plates, ensuring sustained volumetric efficiency (≥ 92%) and minimum internal slip across prolonged high-pressure duty cycles. Operating at a continuous rated pressure of 20 MPa (200 bar / 2,900 psi) and a maximum peak pressure of 25 MPa (250 bar / 3,625 psi), the CB-FC Series spans 6 standardized displacement ratings—10, 18, 25, 32, 40, and 50 mL/r (cm³/rev)—with an operating speed range from 600 to 3000 r/min. Designed for straightforward chassis and PTO integration, the unit features a standardized 2-bolt diamond mounting flange (centering pilot Ø85 mm, bolt spacing 130 mm), interchangeable drive shaft configurations including Ø20 mm cylindrical keyed shaft (P2) and 6-tooth rectangular splined shaft (H: 6 × 20 × 16), and heavy-duty metric rear-cover fluid connections (Inlet M33 × 2 and Outlet M27 × 2), providing robust durability, low operational noise, and long-term service reliability for construction machinery, mining rigs, agricultural tractors, and municipal sanitation trucks.
| Applications
The CB-FC Series hydraulic gear pump is designed for high-pressure, shock-resistant fluid power systems across demanding mobile off-highway vehicles and industrial stationary installations:
Construction & Earthmoving Machinery: Delivers reliable hydraulic fluid power for mini-excavator pilot and auxiliary lines, compact wheel loaders, backhoe loader steering and bucket circuits, and skid-steer attachments.
Lifting & Material Handling Equipment: Powers mast lifting, tilting, and steering hydraulics on internal combustion and electric forklifts, reach stackers, aerial work platforms, and mobile truck-mounted cranes.
Mining & Quarrying Equipment: Provides dependable fluid delivery for underground mining shuttle cars, rock bolters, vibrating screens, and mineral crushing auxiliary power packs operating in dusty, high-vibration environments.
Agricultural Tractors & Forestry Harvesters: Supplies continuous hydraulic energy for three-point hitches, hydraulic remotes, front-end loaders, combine harvester headers, and log splitters.
Municipal Sanitation & Specialized Vehicles: Operates waste compaction cylinders, tailgate lifts, sweeper brush motors, and snow plow angle positioning cylinders on municipal utility trucks.
Industrial Power Units & Hydraulic Presses: Serves as the primary pressure feed for medium-tonnage hydraulic workshop presses, pipe benders, scrap compactors, and hydraulic dock levelers.
| Key Specifications Overview
| Parameter | Hengyuhang CB-FC Series Engineering Specification |
|---|---|
| Pump Type | High-Pressure External Hydraulic Gear Pump (CB-FC Series) |
| Displacement Frame Ratings | 6 Standard Displacement Sizes: 10, 18, 25, 32, 40, 50, and 63 mL/r (cm³/rev) |
| Rated Working Pressure (Nominal) | 20 MPa (200 bar / 2,900 psi) continuous rated operating pressure |
| Maximum Peak Operating Pressure | 25 MPa (250 bar / 3,625 psi) peak pressure threshold |
| Volumetric Efficiency (ηv) | ≥ 92% at rated pressure and speed with automatic bimetal clearance compensation |
| Rotational Speed Range | Rated Speed: 2000 r/min; Minimum: 600 r/min; Maximum: 3000 r/min |
| Drive Gear Construction | High-grade alloy steel with precision-ground case-hardened teeth for smooth meshing, minimal pressure pulsation, and low operating noise |
| Clearance Compensation Technology | Automatic axial and radial pressure-balanced compensation with floating bimetallic side plates to maintain long-term high volumetric efficiency |
| Bearing System | Heavy-duty DU composite material self-lubricating sleeve bearings providing low startup torque, high shock resistance, and extended service life |
| Mounting Flange Configuration | Code A: 2-Bolt Diamond Flange (Centering pilot Ø85 mm -0.035/-0.085 mm, 6.5 mm pilot height, 130 mm bolt center spacing, 2 × Ø13 mm holes) |
| Drive Shaft Configurations | Code P2: Cylindrical shaft Ø20 mm with 6 × 6 × 25 mm flat key; Code H: 6-tooth rectangular splined shaft (6 × 20 × 16, effective length 28 mm) |
| Shaft Extension Length | 45 ± 0.5 mm total extension length from mounting flange face to shaft tip (28 mm effective drive engagement length) |
| Fluid Ports Configuration (Rear Cover) | Rear cover side-by-side ports (50 mm port center distance): Inlet Port M33 × 2; Outlet Port M27 × 2 (Metric female thread) |
| Direction of Rotation | Right-Hand / Clockwise (Code R, viewed facing drive shaft, default/standard); Left-Hand / Counter-Clockwise (Code L) optional |
| Hydraulic Fluid Compatibility | Standard anti-wear mineral hydraulic oils (HLP / HM to ISO 6743-4 and DIN 51524 Part 2); Recommended viscosity: 16 to 68 mm²/s (cSt) |
| Fluid Cleanliness Standard | ISO 4406 Class 19/16 minimum (NAS 1638 Class 9 or 10 filtration recommended to protect wear plates and DU-bushings) |
| Technical Performance Matrix Across Available Sizes
| Model Number | Nominal Displacement (mL/r) | Pressure (MPa / bar) | Rotational Speed (r/min) | Volumetric Efficiency (≥ %) | Theoretical Delivery Flow (L/min) | Dimensions (mm) | Port Connections (M) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated | Max | Min | Rated | Max | @ 2000 r/min | @ 3000 r/min | L1 | L2 | Inlet | Outlet | |||
| CB-FC10 | 10.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 20.0 | 30.0 | 95 | 119 | M33 × 2 | M27 × 2 |
| CB-FC18 | 18.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 36.0 | 54.0 | 106 | 130 | M33 × 2 | M27 × 2 |
| CB-FC25 | 25.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 50.0 | 75.0 | 108 | 132 | M33 × 2 | M27 × 2 |
| CB-FC32 | 32.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 64.0 | 96.0 | 112 | 136 | M33 × 2 | M27 × 2 |
| CB-FC40 | 40.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 80.0 | 120.0 | 116 | 140 | M33 × 2 | M27 × 2 |
| CB-FC50 | 50.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 100.0 | 150.0 | 123 | 147 | M33 × 2 | M27 × 2 |
| Mounting Flange, Shaft and Port Dimensional Specifications
| Feature Element | Engineering Dimension | Technical Characteristic & Application Note |
|---|---|---|
| Mounting Flange (Code A) | 2-Bolt Diamond Flange (菱形法兰) | Centering pilot diameter: Ø85 mm (-0.035 / -0.085 mm tolerance); Pilot spigot depth: 6.5 mm; Bolt center-to-center distance: 130 mm; Total flange width: 150 mm; Total height: 158 mm; 2 mounting bolt through-holes: Ø13 mm. |
| Cylindrical Keyed Shaft (Code P2) | Ø20 mm Parallel Keyed Shaft (平键) | Cylindrical shaft diameter: Ø20 mm (-0.02 / -0.04 mm); Drive shaft total extension: 45 ± 0.5 mm; Usable shaft drive length: 28 mm; Drive key: 6 mm (0 / -0.03 mm) width × 25 mm length; Height over key: 22.5 mm (-0.20 mm). |
| Rectangular Spline Shaft (Code H) | 6-Tooth Rectangular Spline (6 × 20 × 16) | Major diameter: Ø20 mm (-0.02 / -0.04 mm); Minor diameter: Ø16 mm (-0.05 mm); Spline tooth width: 4 mm (-0.011 / -0.044 mm); Total extension: 45 ± 0.5 mm; Effective spline engagement length: 28 mm. |
| Pump Overall Lengths (L1 / L2) | Body length L1: 95 ~ 123 mm Total length L2: 119 ~ 147 mm | Compact axial packaging dimensions scale proportionally with displacement: CB-FC10 (95/119 mm), CB-FC18 (106/130 mm), CB-FC25 (108/132 mm), CB-FC32 (112/136 mm), CB-FC40 (116/140 mm), CB-FC50 (123/147 mm). |
| Fluid In / Out Port Threads | Inlet: M33 × 2 Metric Thread Outlet: M27 × 2 Metric Thread | Both inlet and outlet fluid ports are integrated directly on the cast iron rear cover with a 50 mm port center distance, providing rigid pipe anchoring and clean hydraulic hose routing. |
| Model Coding & Ordering Information
| Code Position | Code Designation | Available Options | Technical Definition & Description |
|---|---|---|---|
| [1] Product Series | CB-FC | CB-FC | High-Pressure Hydraulic Gear Pump Series with 20 MPa rated / 25 MPa peak pressure |
| [2] Nominal Displacement | Displacement (mL/r) | 10, 18, 25, 32, 40, 50 | Geometric displacement per revolution: 10 mL/r up to 50 mL/r |
| [3] Mounting Flange | Mounting Flange Type | A | Code A: 2-Bolt Diamond Flange (Ø85 mm pilot, 130 mm bolt center distance) |
| [4] Port Configuration | Fluid Port Position | H1 / H2 | Code H1: Rear cover side inlet and outlet ports; Code H2: Rear cover end/side porting options |
| [5] Drive Shaft Type | Input Shaft Extension | P2 / H | Code P2: Cylindrical shaft with flat key (Ø20 mm); Code H: Rectangular spline shaft (6 × 20 × 16) |
| [6] Direction of Rotation | Rotational Direction | R (Omitted) / L | Code R: Right-hand / Clockwise rotation (standard/omitted); Code L: Left-hand / Counter-clockwise rotation |
| Technical Performance Matrix Across Available Sizes
| Model Number | Nominal Displacement (mL/r) | Pressure (MPa / bar) | Rotational Speed (r/min) | Volumetric Efficiency (≥ %) | Theoretical Delivery Flow (L/min) | Dimensions (mm) | Port Connections (M) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated | Max | Min | Rated | Max | @ 2000 r/min | @ 3000 r/min | L1 | L2 | Inlet | Outlet | |||
| CB-FC10 | 10.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 20.0 | 30.0 | 95 | 119 | M33 × 2 | M27 × 2 |
| CB-FC18 | 18.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 36.0 | 54.0 | 106 | 130 | M33 × 2 | M27 × 2 |
| CB-FC25 | 25.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 50.0 | 75.0 | 108 | 132 | M33 × 2 | M27 × 2 |
| CB-FC32 | 32.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 64.0 | 96.0 | 112 | 136 | M33 × 2 | M27 × 2 |
| CB-FC40 | 40.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 80.0 | 120.0 | 116 | 140 | M33 × 2 | M27 × 2 |
| CB-FC50 | 50.0 | 20 / 200 | 25 / 250 | 600 | 2000 | 3000 | 92 | 100.0 | 150.0 | 123 | 147 | M33 × 2 | M27 × 2 |
| Code Position | Code Designation | Available Options | Technical Definition & Description |
|---|---|---|---|
| [1] Product Series | CB-FC | CB-FC | High-Pressure Hydraulic Gear Pump Series with 20 MPa rated / 25 MPa peak pressure |
| [2] Nominal Displacement | Displacement (mL/r) | 10, 18, 25, 32, 40, 50, 60 | Geometric displacement per revolution: 10 mL/r up to 50 mL/r |
| [3] Mounting Flange | Mounting Flange Type | A | Code A: 2-Bolt Diamond Flange (Ø85 mm pilot, 130 mm bolt center distance) |
| [4] Port Configuration | Fluid Port Position | H1 / H2 | Code H1: Rear cover side inlet and outlet ports; Code H2: Rear cover end/side porting options |
| [5] Drive Shaft Type | Input Shaft Extension | P2 / H | Code P2: Cylindrical shaft with flat key (Ø20 mm); Code H: Rectangular spline shaft (6 × 20 × 16) |
| [6] Direction of Rotation | Rotational Direction | R (Omitted) / L | Code R: Right-hand / Clockwise rotation (standard/omitted); Code L: Left-hand / Counter-clockwise rotation |
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