CASAPPA Hydraulic Gear Pump KP20 KP30 KP35 KP40 Series
Product introduction
The CASAPPA KP20, KP30, KP35, and KP40 Series Hydraulic Gear Pumps are high-strength cast iron external gear pumps engineered to deliver exceptional volumetric efficiency and heavy-duty reliability across mobile and industrial hydraulic systems under high operating pressures.
| Applications of CASAPPA Hydraulic Gear Pump KP20 KP30 KP35 KP40 Series
These cast iron external gear pumps provide robust fluid pressurization across agricultural equipment, construction machinery, material handling vehicles, and industrial power units. They reliably drive primary work hydraulics, auxiliary circuits, steering systems, and cooling fan drives under continuous heavy loads and demanding field conditions.
Key Technical Specifications
Product Model: CASAPPA KP20 / KP30 / KP35 / KP40 Series
Brand Replacement: CASAPPA OEM or as requested.
Displacement: 4.95 cm³/rev to 180.73 cm³/rev (Group 2, 3, 3.5, and 4)
Rotation Direction: Clockwise (D), counter-clockwise (S)
Speed Range: Min. speed 300 r/min; Max. speed 4000 r/min
Peak Pressure: Up to 320 bar
Overview — CASAPPA KP20, KP30, KP35, KP40 Series Gear Pumps
The CASAPPA KAPPA series is a premier benchmark in commercial cast iron hydraulic external gear pumps, divided into four distinct frame sizes: KAPPA 20 (KP20, Group 2), KAPPA 30 (KP30, Group 3), KAPPA 35 (KP35, Group 3.5 Compact), and KAPPA 40 / 40 Plus (KP40, Group 4). Built with a rigid two-piece cast iron construction comprising a high-strength cast iron body and integrated front mounting flange, the KAPPA family is engineered for applications where operating pressures, oil temperatures, cyclic fatigue, mechanical shock, and fluid contamination exceed the limits of traditional aluminum body pumps.
Inside each pump assembly, precision-machined external gear pairs are supported on high-capacity sleeve bearings continuously lubricated by hydraulic oil. Axial hydrostatic balancing is achieved through pressure-balanced thrust plates backed by elastomeric anti-extrusion pre-load seals. This internal architecture continuously compensates for running clearances, holding volumetric efficiencies above 95% across broad temperature and pressure ranges. Across the four series, displacements span from 4.95 cm³/rev (KP 20•4) up to 180.73 cm³/rev (KP 40•180), supporting peak system pressures up to 320 bar (4,640 psi).
The modular construction allows single pumps as well as multiple-pump combinations (tandem, triple, or quadruple assemblies) with separated stages or common suction ports. Furthermore, the lineup accommodates international standard interfaces—including European standard, SAE "A", SAE "B", SAE "C", and ISO mounting flanges, straight, splined, and tapered drive shafts, alongside BSPP straight thread, SAE O-ring boss (ODT), and SAE 3000/6000 psi split-flange ports. This versatility makes the KAPPA family the primary choice for direct OEM integration and aftermarket replacement.
Dimension — CASAPPA KP20, KP30, KP35, KP40 Series Gear Pumps
Interface data needed with the drawing
| Series | Frame Group | Typical Mounting Flange Options | Drive Shaft Options | Port Configurations | Body Clamp Bolt Torque |
|---|---|---|---|---|---|
| KP20 | Group 2 | European standard 82 E2; SAE "A" 2-bolt (S1, S2); German 4-bolt (B2) | European tapered 1:8 (82); SAE "A" 9T spline (03); SAE 10T/11T spline (01, 07); SAE "B" 13T spline (04); Parallel straight (31, 49) | BSPP Gas straight thread (UNI-ISO 228); SAE ODT straight thread; SAE split flange (SSM) | 70 ±7 Nm (558 ÷ 682 lbf in) |
| KP30 | Group 3 | European standard E3; SAE "A" 2-bolt (S1, S2); SAE "B" 2–4 bolt (S3, K9); SAE "C" (S6, S8) | European tapered 1:8 (83); SAE "B" 13T spline (04, A8); SAE "BB" 15T spline (05, A5); SAE "BB" straight (33); SAE "C" 14T spline (06, A6) | BSPP Gas straight thread (UNI-ISO 228); SAE straight thread (ODT); SAE flanged (SSM / SSS) | 140 ±14 Nm (1,115 ÷ 1,363 lbf in) |
| KP35 | Group 3.5 | SAE "C" 2-bolt / 4-bolt; ISO 3019/1 | SAE "C" 14T involute spline; SAE "CC" spline; Metric keyed straight shaft | SAE 3000 psi Code 61 flanged; SAE O-ring boss thread | 220 ±20 Nm (1,770 ÷ 2,124 lbf in) |
| KP40 | Group 4 | SAE "C" 2–4 bolt; SAE "D" 4-bolt; ISO 4-bolt | SAE "C" 14T spline; SAE "CC" 17T spline; SAE "D" spline; Heavy-duty cylindrical keyed | SAE 3000 / 6000 psi flanged ports; BSPP straight thread; Metric split flange | 280 ±25 Nm (2,257 ÷ 2,700 lbf in) |
Pump Installation Specifications — CASAPPA KP20, KP30, KP35, KP40 Series
The Casappa KAPPA ordering code is a standardized alphanumeric configuration system. Each code segment defines the mechanical displacement, direction of rotation, mounting interface, shaft coupling, port connection, sealing material, and built-in valve options.
General Ordering Code Structure
KP [Series•Size] [Rotation] [Bearing] - [Shaft] [Flange] - [Port Position] [Port Size] - [Seals] - [Body Design]
| Segment | Function | Available Options in KP20 / KP30 / KP35 / KP40 |
|---|---|---|
| 1. Series & Size | Pump frame & geometric displacement | KP 20 (20•4 to 20•31,5) · KP 30 (30•22 to 30•82) · KP 35 (35•63 to 35•100) · KP 40 (40•63 to 40•180) |
| 2. Rotation | Shaft rotation direction | D Clockwise · S Counter-clockwise · R Reversible with external rear drain · L Reversible with external side drain · B Reversible with internal drain |
| 3. Outboard Bearing | Auxiliary radial/axial load support | 0 Without outboard bearing (standard) · 1 / 3 / 6 With heavy-duty outboard bearing for belt/gear drives |
| 4. Drive Shaft | Prime mover coupling interface | Tapered 1:8 (82 for Group 2, 83 for Group 3) · SAE Involute Spline (9T, 11T, 13T, 14T, 15T, 17T) · Parallel keyed shafts |
| 5. Mounting Flange | Machine mounting interface | European standard (E2, E3) · SAE "A", "B", "C", "D" 2-bolt & 4-bolt (S1, S2, S3, K9, S6, S8) · ISO 3019 standards |
| 6. Port Position | Location of suction & pressure ports | L Side ports (standard) · P Rear ports · H Side inlet, rear outlet · K Rear inlet, side outlet |
| 7. Port Connections | Thread type or flange dimension | BSPP Gas straight thread (GD, GE, GF, GG) · SAE O-ring boss (ODT: OC, OD, OF, OG) · SAE J518 flanged (SSM/SSS) |
| 8. Elastomeric Seals | Seal compound and temperature class | N Buna-N NBR (standard, −25 °C to +80 °C) · V Viton FKM (high-temp/synthetic fluid, up to +110 °C) · N Bz / V Bz With bronze thrust plates |
| 9. Body Design | Housing pressure specification | CSC / CSL Standard cast iron body · HSC / HSL Compact body design · BSC / BSL High-performance reinforced body |
Representative Model Code Breakdown
KP20.16D0-03S1-LGE/GD-N: KAPPA 20 pump, 16.85 cm³/rev displacement, clockwise rotation (D), no outboard bearing (0), SAE "A" 9-tooth spline shaft (03), SAE "A" 2-bolt flange (S1), side ports (L), inlet G 3/4" BSPP (GE), outlet G 1/2" BSPP (GD), NBR seals (N).
KP30.46D0-33S3-LGG/GF-N-CSC: KAPPA 30 pump, 46.34 cm³/rev displacement, clockwise rotation (D), no outboard bearing (0), SAE "BB" straight shaft (33), SAE "B" 2–4 bolt flange (S3), side ports (L), inlet G 1-1/4" (GG), outlet G 1" (GF), NBR seals (N), standard cast iron body (CSC).
KP35.80D0-06S6-LMC/MD-N: KAPPA 35 pump, 80.91 cm³/rev displacement, clockwise rotation (D), SAE "C" 14-tooth spline shaft (06), SAE "C" 4-bolt flange (S6), side SAE split-flange ports (L), NBR seals (N).
KP40.133D0-06S8-LME/MD-N-CSC: KAPPA 40 pump, 134.03 cm³/rev displacement, clockwise rotation (D), SAE "C" 14-tooth spline shaft (06), SAE "C" 2-bolt flange (S8), side flanged ports, NBR seals (N), heavy-duty body (CSC).
| Techspecs of CASAPPA KP20, KP30, KP35, KP40 Series
| 4.1 Performance Specifications by Series and Displacement
KAPPA 20 Series (KP20 — Group 2)
| Pump Model | Displacement (cm³/rev) | Displacement (in³/rev) | Continuous Pressure p1 (bar / psi) | Intermittent Pressure p2 (bar / psi) | Peak Pressure p3 (bar / psi) | Max Speed (r/min) | Min Speed (r/min) |
|---|---|---|---|---|---|---|---|
| KP 20•4 | 4.95 | 0.30 | 280 / 4,060 | 300 / 4,350 | 320 / 4,640 | 4,000 | 350 |
| KP 20•6,3 | 6.61 | 0.40 | 280 / 4,060 | 300 / 4,350 | 320 / 4,640 | 4,000 | 350 |
| KP 20•8 | 8.26 | 0.50 | 280 / 4,060 | 300 / 4,350 | 320 / 4,640 | 3,500 | 350 |
| KP 20•11,2 | 11.23 | 0.68 | 275 / 3,988 | 295 / 4,278 | 315 / 4,568 | 3,500 | 350 |
| KP 20•14 | 14.53 | 0.89 | 265 / 3,843 | 290 / 4,205 | 320 / 4,640 | 3,500 | 350 |
| KP 20•16 | 16.85 | 1.03 | 260 / 3,770 | 290 / 4,205 | 320 / 4,640 | 3,000 | 350 |
| KP 20•20 | 21.14 | 1.29 | 240 / 3,480 | 265 / 3,843 | 290 / 4,205 | 3,000 | 350 |
| KP 20•25 | 26.42 | 1.61 | 200 / 2,900 | 220 / 3,190 | 250 / 3,625 | 2,500 | 350 |
| KP 20•31,5 | 33.03 | 2.01 | 170 / 2,465 | 190 / 2,755 | 210 / 3,045 | 2,000 | 350 |
KAPPA 30 Series (KP30 / Kappa 30 NS — Group 3)
| Pump Model | Displacement (cm³/rev) | Displacement (in³/rev) | Continuous Pressure p1 (bar / psi) | Rated/System Pressure p2 (bar / psi) | Peak Pressure p3 (bar / psi) | Max Speed (r/min) | Min Speed (r/min) |
|---|---|---|---|---|---|---|---|
| KP 30•22 | 21.99 | 1.34 | 270 / 3,915 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•27 | 26.70 | 1.63 | 270 / 3,915 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•31 | 30.63 | 1.87 | 250 / 3,625 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•34 | 34.56 | 2.11 | 250 / 3,625 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•38 | 39.27 | 2.40 | 250 / 3,625 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•41 | 41.62 | 2.54 | 250 / 3,625 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•43 | 43.98 | 2.68 | 230 / 3,335 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•46 | 46.34 | 2.83 | 210 / 3,045 | 300 / 4,350 | 320 / 4,640 | 3,000 | 350 |
| KP 30•51 | 51.83 | 3.16 | 210 / 3,045 | 290 / 4,205 | 310 / 4,495 | 2,500 | 350 |
| KP 30•56 | 56.54 | 3.45 | 190 / 2,755 | 280 / 4,060 | 300 / 4,350 | 2,500 | 350 |
| KP 30•61 | 61.26 | 3.74 | 180 / 2,610 | 260 / 3,770 | 280 / 4,060 | 2,500 | 350 |
| KP 30•73 | 73.82 | 4.50 | 170 / 2,465 | 250 / 3,625 | 270 / 3,915 | 2,500 | 350 |
| KP 30•82 | 81.68 | 4.98 | 160 / 2,320 | 230 / 3,335 | 250 / 3,625 | 2,500 | 350 |
KAPPA 35 Series (KP35 — Group 3.5 Compact)
| Pump Model | Displacement (cm³/rev) | Displacement (in³/rev) | Continuous Pressure p1 (bar / psi) | System Pressure p2 (bar / psi) | Peak Pressure p3 (bar / psi) | Max Speed (r/min) | Min Speed (r/min) |
|---|---|---|---|---|---|---|---|
| KP 35•63 | 63.88 | 3.90 | 250 / 3,625 | 275 / 3,988 | 290 / 4,205 | 3,000 | 400 |
| KP 35•71 | 72.40 | 4.42 | 250 / 3,625 | 275 / 3,988 | 290 / 4,205 | 3,000 | 400 |
| KP 35•80 | 80.91 | 4.94 | 250 / 3,625 | 275 / 3,988 | 290 / 4,205 | 3,000 | 400 |
| KP 35•90 | 91.56 | 5.59 | 240 / 3,480 | 260 / 3,770 | 275 / 3,988 | 2,500 | 400 |
| KP 35•100 | 100.08 | 6.10 | 225 / 3,263 | 245 / 3,553 | 260 / 3,770 | 2,500 | 400 |
KAPPA 40 / 40 Plus Series (KP40 — Group 4)
| Pump Model | Displacement (cm³/rev) | Displacement (in³/rev) | Continuous Pressure p1 (bar / psi) | System Pressure p2 (bar / psi) | Peak Pressure p3 (bar / psi) | Max Speed (r/min) | Min Speed (r/min) |
|---|---|---|---|---|---|---|---|
| KP 40•63 | 61.43 | 3.75 | 260 / 3,770 | 280 / 4,060 | 300 / 4,350 | 2,800 | 300 |
| KP 40•73 | 72.60 | 4.43 | 260 / 3,770 | 280 / 4,060 | 300 / 4,350 | 2,800 | 300 |
| KP 40•87 | 86.56 | 5.28 | 260 / 3,770 | 280 / 4,060 | 300 / 4,350 | 2,800 | 300 |
| KP 40•100 | 99.79 | 6.09 | 260 / 3,770 | 280 / 4,060 | 300 / 4,350 | 2,700 | 300 |
| KP 40•109 | 108.90 | 6.64 | 260 / 3,770 | 280 / 4,060 | 300 / 4,350 | 2,700 | 300 |
| KP 40•121 | 121.80 | 7.43 | 260 / 3,770 | 280 / 4,060 | 300 / 4,350 | 2,700 | 300 |
| KP 40•133 | 134.03 | 8.18 | 250 / 3,625 | 270 / 3,915 | 290 / 4,205 | 2,700 | 300 |
| KP 40•151 | 150.79 | 9.20 | 240 / 3,480 | 260 / 3,770 | 280 / 4,060 | 2,700 | 300 |
| KP 40•160 | 160.77 | 9.81 | 230 / 3,335 | 250 / 3,625 | 270 / 3,915 | 2,500 | 300 |
| KP 40•180 | 180.73 | 11.02 | 230 / 3,335 | 250 / 3,625 | 270 / 3,915 | 2,200 | 300 |
| 4.2 Operating Conditions & Fluid Guidelines
| Operating Parameter | Technical Requirement & Tolerance |
|---|---|
| Hydraulic Fluid Type | Mineral oil based hydraulic fluids conforming to ISO/DIN standards (HL or HLP). Fire-resistant water-glycol (HFC) and synthetic ester (HEES) fluids available upon specification. |
| Inlet Suction Pressure Range | 0.7 to 3.0 bar absolute (10 to 44 psi). When inlet pressure exceeds 1.5 bar abs (22 psi), a reinforced shaft seal configuration is required. |
| Operating Viscosity (Recommended) | 12 to 100 mm²/s (cSt) [60 to 456 SSU]. |
| Maximum Permissible Viscosity | Up to 750 mm²/s (cSt) [3,410 SSU] during normal warm-up. Up to 2,000 mm²/s (cSt) [9,100 SSU] for cold start conditions. |
| Fluid Temperature Range (NBR Seals) | −25 °C to +80 °C continuous (−13 °F to +176 °F); peak maximum +100 °C (+212 °F). |
| Fluid Temperature Range (FKM/Viton) | −25 °C to +110 °C continuous (−13 °F to +230 °F); peak maximum +125 °C (+257 °F). |
| Cold Start Parameters | Minimum inlet pressure 0.5 bar abs (7 psi); system pressure limited to ≤ 50 bar (725 psi); drive speed ≤ 1,500 r/min; minimum temperature −40 °C (−40 °F). |
| Fluid Cleanliness Requirement | ISO 4406 Class 21/19/16 or NAS 1638 Class 10 (filter rating β10 ≥ 75 or nominal 10 µm absolute filtration). |
| Internal Rotation Reversibility | Unidirectional pumps can be converted from clockwise to counter-clockwise rotation by dismantling the assembly, swapping drive and driven gears, relocating the internal balance plates, and rotating the mounting flange 180°. |
Advantages — CASAPPA KP20, KP30, KP35, KP40 Series
High-Strength Two-Piece Cast Iron Structure
Both the body housing and front mounting flange are cast from high-grade nodular/grey cast iron, eliminating structural housing deformation under continuous high-pressure spikes and severe thermal loads.
Superior Volumetric and Mechanical Efficiency
Hydrostatic pressure-balanced thrust plates continuously compensate for axial and radial clearances, maintaining volumetric efficiencies exceeding 95% over the entire working life.
Comprehensive Displacement Coverage (4.95 to 180.73 cm³/rev)
A seamless geometric displacement progression across four unified frame groups eliminates flow gaps for systems requiring small auxiliary feeds up to large industrial main pumps.
High Pressure Capabilities
Heavy-duty gear design and reinforced bearing supports deliver continuous working pressures up to 280 bar and peak pressures reaching 320 bar.
Low Noise Profile and Minimal Flow Ripple
Advanced 12-tooth and 14-tooth optimized gear tooth profiles combined with precision anti-cavitation relief grooves drastically reduce fluid pulsations and acoustic noise levels in cab-adjacent machinery.
High Contamination Tolerance
Cast iron construction and heavy-duty DU composite sleeve bearings provide greater resistance to fluid particulates and thermal degradation than soft aluminum housings.
Versatile Multiple-Pump Stacking
Engineered for modular combination; single pumps can be factory-configured into tandem, triple, or quadruple pumps across mixed frame groups (e.g., KP30 + KP20) with common or separated suction inlets.
Built-in Circuit Valving Options
Available with integrated priority valves, maximum pressure relief valves, load-sensing valves, and anti-cavitation check valves to streamline machine hydraulic manifolds and eliminate external plumbing.
Global Mounting Interchangeability
Compliant with international SAE, European, German DIN, and ISO standards, ensuring straightforward drop-in replacement without modifying engine bells, PTO adapters, or existing hydraulic lines.
Reference — CASAPPA KP20, KP30, KP35, KP40 Series
Displacement & Pressure Matrix Across All 4 Series
| Series | Group Size | Displacement Range (cm³/rev) | Continuous Pressure p1 (bar) | Peak Pressure p3 (bar) | Maximum Speed Range (r/min) | Typical Drive Shaft Types |
|---|---|---|---|---|---|---|
| KP20 | Group 2 | 4.95 to 33.03 | 170 to 280 | 210 to 320 | 2,000 to 4,000 | 1:8 Taper, SAE "A" Spline (9T/11T), Parallel Keyed |
| KP30 | Group 3 | 21.99 to 81.68 | 160 to 270 | 250 to 320 | 2,500 to 3,000 | 1:8 Taper, SAE "B" / "BB" Spline (13T/15T), Straight Keyed |
| KP35 | Group 3.5 | 63.88 to 100.08 | 225 to 250 | 260 to 290 | 2,500 to 3,000 | SAE "C" Spline (14T), SAE "CC", Metric Parallel |
| KP40 | Group 4 | 61.43 to 180.73 | 230 to 260 | 270 to 300 | 2,200 to 2,800 | SAE "C" (14T), SAE "CC" (17T), SAE "D" Spline |
Representative Complete Order Numbers
KP20.4D0-03S1-LGD/GD-N
KP20.6,3D0-82E2-LGD/GD-N
KP20.11,2S0-03S1-LGE/GD-N
KP20.14D0-82E2-LGE/GD-N
KP20.16D0-03S1-LGE/GD-N
KP20.20D0-04S5-LGE/GD-N
KP20.25S0-04S5-LGE/GD-N
KP20.31,5D0-82E2-LGE/GD-N
KP30.22D0-83E3-LED/EB-N
KP30.27D0-83E3-LED/EB-N
KP30.34D0-04S3-LED/EB-N
KP30.38D0-83E3-LED/EB-N
KP30.43D0-A8K9-LMD/MC-N
KP30.46D0-33S3-LGG/GF-N-CSC
KP30.51D0-06S8-LME/OF-N-CSC
KP30.56D0-04S3-LOG/OC/OA-N-P9
KP30.61D0-84E4-LEF/ED-N
KP30.73D0-83E3-LED/EB-N
KP30.82D0-83E3-LED/EB-N
KP35.63D0-06S6-LMC/MD-N
KP35.71D0-06S6-LMC/MD-N
KP35.80D0-06S6-LMC/MD-N
KP35.90D0-06S6-LMD/ME-N
KP35.100D0-06S6-LMD/ME-N
KP40.63D0-06S8-LMD/MC-N-CSC
KP40.73D0-06S8-LMD/MC-N-CSC
KP40.87D0-06S8-LME/MD-N-CSC
KP40.100D0-06S8-LME/MD-N-CSC
KP40.109D0-06S8-LMF/ME-N-CSC
KP40.121S0-06S8-LMF/ME-N-CSC
KP40.133D0-34S8-LOF/F-N
KP40.151D0-06S8-LMF/ME-N-CSC
KP40.160D0-06S8-LMF/ME-N-CSC
KP40.180D0-06S8-LMF/ME-N-CSC
Brand Replacement
Quanzhou Hengyuhang Power Technology Co., Ltd. (HENGYUHANG) manufactures precision aftermarket replacement hydraulic gear pumps fully compatible with the CASAPPA KAPPA series, including KP20, KP30, KP35, and KP40 frame sizes. Every replacement unit is engineered to match the original dimensional envelopes, mounting pilots, shaft splines, and fluid port locations established by Casappa.
Machinery owners, service workshops, and system integrators can install HENGYUHANG replacement gear pumps directly onto mobile equipment and industrial machines without altering drivelines, modifying hydraulic hoses, or replacing mounting brackets. Units are constructed with premium cast iron bodies, case-hardened alloy gears, and hydrodynamic sleeve bearings, delivering equivalent volumetric flow, pressure ratings, and operating life at competitive commercial terms. Customers are invited to provide original pump nameplate codes or machine part numbers for immediate configuration matching.
Applications
The extensive displacement range of the KAPPA family allows it to serve as the hydraulic heart across diverse heavy-duty industries:
Construction & Earthmoving Machinery: Main implement pumps, pilot pressure systems, and auxiliary circuit drives on mini and medium excavators, wheel loaders, backhoe loaders, skid steers, asphalt rollers, and motor graders.
Agricultural Equipment: Hydraulic lift, implement steering, chemical spraying, and grain harvesting systems on high-horsepower tractors, combine harvesters, round balers, telehandlers, and forestry logging forwarders.
Material Handling & Logistics: Main mast elevation, fork tilt, auxiliary clamp actuation, and hydrostatic steering on counterbalance diesel/LPG forklifts, rough-terrain reach stackers, and mobile container handlers.
Commercial & Vocational Vehicles: PTO-driven hydraulic systems on concrete mixer trucks, municipal waste refuse compactors, aerial bucket trucks, recovery cranes, and sewer suction cleaning vehicles.
Industrial Hydraulic Power Units (HPUs): Continuous duty pressure supply for plastic injection molding machinery, metal stamping and baling presses, automated machine tool clamping systems, and foundry hydraulic power packs.
Hydrostatic Cooling Fan Drives: Variable-speed, electronically controlled cooling fan systems in heavy-duty commercial buses, dump trucks, and stationary power generation generator sets.
Package & Shipping
| Parameter | Commercial Standard |
|---|---|
| Packaging Method | Heavy-duty wooden export crate / reinforced shockproof carton with customized foam interior protection |
| Minimum Order Quantity (MOQ) | 1 unit — flexible single-piece replacement to minimize fleet downtime |
| Package Weight & Dimensions | Calculated individually per order based on frame group (KP20 to KP40) and single/multiple stage configuration |
| Lead Time | Standard configuration units dispatched in 3 to 7 business days; custom or multi-stage assemblies in 10 to 15 business days |
| Shipping Methods | International express courier (DHL, FedEx, UPS, TNT), air freight for urgent repair, or ocean container freight for bulk supply |
| Customization Services | OEM / ODM private labeling, custom laser nameplate branding, specialized paint coatings (Black VNR01 / Grey VGR01), and custom packaging |
| Warranty Coverage | 12-month comprehensive manufacturer warranty against material or manufacturing defects |
Why Choose Hengyuhang?
Direct Hydraulic Manufacturer: Quanzhou Hengyuhang Power Technology Co., Ltd. operates advanced manufacturing facilities specializing in gear pumps, gear motors, flow dividers, and custom hydraulic manifolds.
Complete Range Coverage: Full replacement capabilities covering Group 0.5 to Group 4 gear pumps, supporting seamless interchangeability across leading international brands.
Precision Manufacturing & In-House Testing: Equipped with high-precision CNC machining centers, automated gear hobbing and tooth grinding equipment, vacuum heat treatment, and computerized hydraulic testing benches. 100% of finished units undergo flow, pressure, and leakage testing before shipment.
Low MOQ & Rapid Response: Flexible 1-piece minimum order quantity enables operators to replace failed components quickly without tying up capital in excessive spare inventory.
Rigorous Technical Matching: Experienced application engineers verify original Casappa ordering codes, flange dimensions, shaft dimensions, and port threads prior to manufacturing to ensure 100% installation compatibility.
Dedicated Global Support: Responsive technical consultation, prompt after-sales support, and rapid global logistics tracking to ensure maximum equipment uptime.
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