Gear pump
External Gear Pump . Group 2PDF 4CC-30CC 4-hole rectangular series
Hengyuhang External Gear Pump Group 2PDF 4-Hole Rectangular Series is a robust positive displacement gear pump designed to deliver high volumetric efficiency and stable fluid power under demanding industrial and mobile operating pressures.
| Applications of Hengyuhang External Gear Pump Group 2PDF 4-Hole Rectangular Series
This external gear pump is engineered for heavy-duty fluid transfer and hydraulic circuit pressurization across industrial manufacturing, agricultural machinery, and mobile hydraulic systems. It powers auxiliary functions, steering circuits, and drive mechanisms in equipment operating under continuous high loads and severe environmental conditions.
| Key Technical Specifications
Product Model: Hengyuhang External Gear Pump Group 2PDF 4-Hole Rectangular Series
Brand Replacement: CASAPPA, Rexroth, Marzocchi, Parker OEM or as requested.
Displacement: 4 to 30 cm³/rev
Rotation Direction: Clockwise (D), counter-clockwise (S), reversible (R)
Speed Range: Min. speed 500 to 700 r/min; Max. speed 3000 to 4000 r/min
Peak Pressure: 250 to 300 bar
| Overview of HENGYUHANG Group 2PDF 4-Hole Rectangular Series External Gear Pumps
The HENGYUHANG Group 2PDF 4-Hole Rectangular Series represents specialized European and international standard hydraulic engineering, featuring a dedicated 4-bolt rectangular fixed mounting flange configuration designed for rigid, vibration-resistant direct bell-housing installation. Covering a broad displacement range from 4.0 up to 30.0 cm³/rev, this series is engineered specifically to replace European standard 4-bolt fixed gear pumps across 39 international brands without necessitating mounting bracket modifications or driveline realignment.
Constructed using a high-density extruded aerospace-grade aluminum alloy gear casing paired with heavy-duty spheroidal graphite ductile cast-iron or aluminum front 4-bolt mounting flanges and rear end-covers, the pump resists housing barrel dilation under severe continuous working pressures up to 250 bar (3,625 psi). The internal rotating group incorporates case-hardened, precision-ground alloy steel gears supported by high-load hydrodynamic composite DU/PTFE sleeve bushings. Hydrostatic floating axial pressure balance thrust plates automatically compensate for operating wear and thermal clearance changes, sustaining volumetric efficiencies above 94% and providing whisper-quiet fluid delivery across mobile machinery cabins and indoor industrial plants.
| Dimension of HENGYUHANG Group 2PDF 4-Hole Rectangular Series External Gear Pumps
Interface data needed with the drawing:
| Item | Value |
|---|---|
| Mounting flange | European standard 4-bolt rectangular fixed mounting flange (pilot Ø 36.5 mm with 71.5 × 96.0 mm bolt pattern / pilot Ø 50.8 mm with 72.0 × 100.0 mm bolt pattern) / German 4-hole fixed flange |
| Drive shaft | 1:8 European taper shaft with woodruff key (M12 × 1.25 nut) / Cylindrical keyed shaft (Ø 15.87 mm, Ø 19.05 mm, or Ø 20.0 mm) / Involute splined shaft (DIN 5482 B17x14 or SAE 9T / 11T spline) |
| Outboard bearing | Standard without front bearing (direct bell-housing coupling engagement) / Optional heavy-duty front radial/axial bearing for belt and pulley drive systems |
| Rotation | Clockwise (D) or Anti-clockwise (S), looking at the drive shaft end (Bi-directional reversible rotation available upon request) |
| Ports position | Side-positioned ports (L) on body / Rear-cover ports (P) for compact manifold blocks |
| Inlet Port | European standard 4-bolt diamond flange (M8 bolts, Ø 20.0 mm or Ø 27.0 mm) / G 3/4" or G 1" BSPP thread / 1-1/16-12 UN SAE O-ring boss |
| Outlet Port | European standard 4-bolt diamond flange (M6/M8 bolts, Ø 15.0 mm or Ø 20.0 mm) / G 1/2" or G 3/4" BSPP thread / 7/8-14 UNF SAE O-ring boss |
| Seals | N — Buna-N (NBR) elastomeric seals (-20 °C to +85 °C) standard; Viton (FKM) available for high-temperature hydraulic fluids (-15 °C to +110 °C) |
| Body construction | High-tensile extruded aluminum alloy body with ductile cast-iron or aluminum 4-hole fixed front mounting flange and rear cover |
| 4-Bolt flange tightening torque | 45 ±3 Nm (398 ÷ 425 lbf in) |
| Body tie-rod clamp bolt torque | 60 ±4 Nm (496 ÷ 566 lbf in) |
| Pump Installation Specifications HENGYUHANG Group 2PDF 4-Hole Rectangular Series
The HENGYUHANG Group 2PDF 4-Hole Rectangular Series pump utilizes a structured modular ordering and specification code to ensure precise mechanical, hydraulic, and mounting interchangeability:
Code structure — reference: 2PDF-4H — Group 2 4-Hole Rectangular High-Pressure External Gear Pump Series
| Segment | Meaning | Standard Options & Features |
|---|---|---|
| Series | 2PDF-4H | Group 2 high-pressure external gear pump architecture with 4-hole fixed flange (4.0 to 30.0 cm³/rev) |
| Displacement | 4.0 to 30.0 | Geometric displacement in cm³/rev (4.0, 6.0, 8.5, 11.0, 14.0, 16.5, 19.5, 22.5, 26.0, 30.0) |
| Rotation | D / S / R | D: Clockwise; S: Anti-clockwise; R: Reversible / Bi-directional |
| Outboard Bearing | 0 / 1 | 0: Standard without front bearing; 1: With heavy-duty front radial/axial support bearing |
| Drive Shaft | T1 / C1 / S1 | T1: 1:8 European taper shaft with woodruff key; C1: Ø 19.05 mm cylindrical keyed shaft; S1: DIN 5482 B17x14 spline |
| Mounting Flange | E4 / G4 | E4: European standard 4-bolt rectangular fixed flange (pilot Ø 36.5 mm); G4: German standard 4-bolt fixed flange (pilot Ø 50.8 mm) |
| Ports Code | L / P | L: Side flanged/threaded body ports; P: Rear cover threaded ports |
| Inlet / Outlet | F2 / G2 / U2 | F2: European 4-bolt diamond flange; G2: BSPP cylindrical thread; U2: SAE straight thread O-ring boss |
| Seals | N / V | N: Buna-N (NBR) standard; V: Viton (FKM) high-temperature seals |
| Special Features | RV / ST | RV: Integrated internal pressure relief valve; ST: Customized OEM body configuration |
| Reading your replacement code
| Your Target Brand & Model | HENGYUHANG 2PDF 4-Hole Equivalent | Interchange Verification Notes |
|---|---|---|
| CASAPPA POLARIS PLP20 (4-Hole E2/G2 Flange) | HENGYUHANG 2PDF 4-Hole Series | Identical European 4-bolt rectangular spigot, shaft taper, and port centerline dimensions |
| Bosch Rexroth AZPF (4-Bolt European Flange) | HENGYUHANG 2PDF 4-Hole Series | 100% mounting pilot, shaft woodruff key, and continuous pressure rating match |
| MARZOCCHI 2P / ALP2 / GHP2 (Standard 4-Bolt) | HENGYUHANG 2PDF 4-Hole Series | Direct mechanical envelope match; identical inlet/outlet flange drillings |
| PARKER PGP511 (European 4-Bolt Flange) | HENGYUHANG 2PDF 4-Hole Series | Full hydraulic flow compatibility, exact 4-bolt pitch, and shaft interchange |
| DANFOSS / Turolla Group 2 (SNP2 4-Bolt) | HENGYUHANG 2PDF 4-Hole Series | Seamless drop-in fit for European tractor implement circuits and industrial HPUs |
| VIVOLO (Vivoil) X2P / XV-2P (European 4-Bolt) | HENGYUHANG 2PDF 4-Hole Series | Direct interchange on shaft, flange, and side European diamond flanged ports |
| SALAMI 2PB / 2PE (European 4-Bolt Spigot) | HENGYUHANG 2PDF 4-Hole Series | Identical bolt hole pattern and gear journal high-pressure ratings |
| BUCHER Hydraulics AP212 (4-Hole Fixed Flange) | HENGYUHANG 2PDF 4-Hole Series | Direct mounting fit for industrial machine tool clamping and lifting loops |
| Techspecs of HENGYUHANG Group 2PDF 4-Hole Rectangular Series
| Performance Data Across Displacements
| Model Code | Displacement (cm³/rev) | Displacement (in³/rev) | Continuous Pressure p1 (bar / psi) | Intermittent Pressure p2 (bar / psi) | Peak Pressure p3 (bar / psi) | Min. Speed (r/min) | Max. Speed (r/min) | Flow at 1500 r/min (l/min) |
|---|---|---|---|---|---|---|---|---|
| 2PDF-4H-04 | 4.00 | 0.244 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 700 | 4,000 | 6.00 |
| 2PDF-4H-06 | 6.00 | 0.366 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 700 | 4,000 | 9.00 |
| 2PDF-4H-08 | 8.50 | 0.518 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 700 | 3,800 | 12.75 |
| 2PDF-4H-11 | 11.00 | 0.671 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 600 | 3,800 | 16.50 |
| 2PDF-4H-14 | 14.00 | 0.854 | 250 / 3,625 | 275 / 3,988 | 300 / 4,350 | 600 | 3,500 | 21.00 |
| 2PDF-4H-16 | 16.50 | 1.006 | 230 / 3,335 | 255 / 3,698 | 280 / 4,060 | 600 | 3,500 | 24.75 |
| 2PDF-4H-19 | 19.50 | 1.189 | 210 / 3,045 | 235 / 3,408 | 260 / 3,770 | 500 | 3,200 | 29.25 |
| 2PDF-4H-22 | 22.50 | 1.372 | 200 / 2,900 | 225 / 3,263 | 250 / 3,625 | 500 | 3,000 | 33.75 |
| 2PDF-4H-26 | 26.00 | 1.586 | 180 / 2,610 | 205 / 2,973 | 230 / 3,335 | 500 | 3,000 | 39.00 |
| 2PDF-4H-30 | 30.00 | 1.830 | 170 / 2,465 | 190 / 2,755 | 210 / 3,045 | 500 | 2,800 | 45.00 |
| Operating Conditions & Fluid Compatibility
| Operating Parameter | Specification | Recommendation & Limits |
|---|---|---|
| Hydraulic fluid type | Mineral oil-based hydraulic fluids | HL or HLP hydraulic oils to ISO 6743/4; DIN 51524 Class 1 and 2 |
| Fluid operating viscosity | 12 to 100 mm²/s (cSt) | Optimal operating viscosity range: 20 to 80 mm²/s (cSt) |
| Max. cold starting viscosity | Up to 1,000 mm²/s (cSt) | Short duration cold start at low speed without excessive load |
| Fluid operating temperature | -20 °C to +85 °C (-4 °F to +185 °F) | Standard NBR seals; Viton (FKM) seals required for +85 °C to +110 °C |
| Inlet suction line pressure | 0.7 to 3.0 bar absolute (10 to 44 psia) | Minimum suction line absolute pressure 0.7 bar (avoid cavitation) |
| Fluid cleanliness level | Class 20/18/15 to ISO 4406 | Recommended filtration: β25 ≥ 75 on return/suction circuit |
Advantages — HENGYUHANG Group 2PDF 4-Hole Rectangular Series
Direct 4-Bolt OEM Drop-In Interchangeability
Precision-machined to original European 4-bolt rectangular fixed flange standards (71.5 × 96.0 mm or 72.0 × 100.0 mm), 1:8 tapered drive shafts, and port centerlines, enabling immediate 1:1 drop-in replacement across 39 leading global manufacturers.
Superior Structural Rigidity & Anti-Vibration Design
The 4-hole fixed mounting flange provides four symmetrical anchoring points that distribute hydraulic cyclic reaction torque evenly into the machine bell-housing, effectively eliminating pump body flex and bolt loosening under high cyclic pressure pulsations.
High Continuous Pressure Resilience
High-strength extruded aluminum alloy body reinforced with heavy-duty ductile cast-iron covers prevents casing barrel dilation under continuous operating pressures up to 250 bar (3,625 psi).
Outstanding Volumetric Efficiency (>94%)
Hydrostatic floating pressure balance thrust plates automatically compensate for wear and thermal clearance changes, sustaining peak flow output and minimizing internal slip over thousands of operating hours.
Low Acoustic Emission & Pulsation
Precision-shaved, case-hardened alloy steel gear profiles minimize fluid trapping and pressure pulsation, ensuring ultra-quiet operation in mobile machinery cabins and indoor industrial plants.
Flexible Port & Valve Customization
Readily configured with European 4-bolt diamond flanged ports, BSPP cylindrical threaded ports, or integrated pressure relief valves tailored to bespoke customer requirements.
Reference — HENGYUHANG Group 2PDF 4-Hole Rectangular Series
Series Architecture Across Group 2PDF 4-Hole Rectangular Series
The HENGYUHANG Group 2PDF 4-Hole Fixed family covers 10 standardized displacements, ensuring optimal hydraulic matching:
Low-Displacement High-Pressure Range (4.0 – 8.5 cm³/rev): 2PDF-4H-04, 2PDF-4H-06, 2PDF-4H-08
Intermediate Work-Horse Range (11.0 – 19.5 cm³/rev): 2PDF-4H-11, 2PDF-4H-14, 2PDF-4H-16, 2PDF-4H-19
High-Flow Output Range (22.5 – 30.0 cm³/rev): 2PDF-4H-22, 2PDF-4H-26, 2PDF-4H-30
Comprehensive Interchangeability Matrix Across 39 Brands
The HENGYUHANG Group 2PDF 4-Hole Fixed Series provides proven mechanical, mounting, and hydraulic drop-in substitution for the following 39 international manufacturers:
ARGO-HYTOS: GP2 Series 4-bolt fixed external gear pumps
ASEDA: Group 2 European 4-bolt tractor implement gear pumps
ATOS: PFG-2 / PFE / PFEO series 4-bolt external gear pumps
B&C Hydraulics: GR2 series 4-bolt compact gear pumps
BLUEASCEND: Group 2 4-bolt aluminum gear pumps for mobile machinery
Boden: Boden B2 / BG2 4-bolt hydraulic gear pumps
BONDIOLI & PAVESI: HP Series Group 2 4-bolt gear pumps (HP2, HPL2)
Brevini Fluid Power (Dana Brevini): OT200 / B200 series 4-bolt compact pumps
BUCHER Hydraulics: AP212 / QX2 series 4-bolt high-pressure gear pumps
Caproni: 20A / 20C / Group 2 4-bolt hydraulic gear pumps
CASAPPA: POLARIS Group 2 (PLP20 4-bolt E2/G2 flange, 2PDF, PL20) gear pumps
CONCENTRIC (Haldex): W900 / Calzoni Group 2 4-bolt external pumps
DANFOSS Power Solutions: SNP2 / Turolla D Series 4-bolt Group 2 pumps
DUPLOMATIC: IGP2 / GP2 series 4-bolt external gear pumps
Galtech: 2SP series 4-bolt compact gear pumps
GRH Hydraulics: 2PF series 4-bolt aluminum gear pumps
HANSA-TMP: Group 2 4-bolt gear pumps and power pack units
HESPER: Group 2 4-bolt mobile hydraulic gear pumps
HIDRAULICA: Group 2 4-bolt external gear pumps
HONOR Gear Pumps: Group 2 4-bolt series pumps
HPI (Hydraulique Professionnelle Industrielle): Series M2 / P2 4-bolt gear pumps
HYDAC: PGE200 series 4-bolt external gear pumps
HYDROMAX: Group 2 4-bolt external hydraulic gear pumps
HYDRONIT: Group 2 4-bolt compact power pack central block gear pumps
JIHOSTROJ: P23 / Q2 Series Group 2 4-bolt hydraulic gear pumps
JOYANG: Group 2 4-bolt gear pumps for material handling
KOMPASS: Group 2 4-bolt industrial gear pumps
KRACHT: KF 2 / KP 2 series 4-bolt high-performance gear pumps
MARZOCCHI: 2P / ALP2 / GHP2 series 4-bolt high-pressure gear pumps
MetaHydra: Group 2 4-bolt custom gear pumps
PARKER Hannifin: PGP511 / PGP517 Series 4-bolt Group 2 gear pumps
REXPOWER: Group 2 4-bolt external gear pumps
Bosch Rexroth: AZPF Series 4-bolt European Group 2 gear pumps
REXROTH-SIGMA: Sigma Group 2 4-bolt gear pumps
RONZIO: 02 Series Group 2 4-bolt high-pressure gear pumps
ROQUET: 2L / 2M Series Group 2 4-bolt external gear pumps
SALAMI: 2PB / 2PE series 4-bolt compact gear pumps
SDH (Shengda Hydraulics): Group 2 4-bolt gear pumps
VIVOLO (Vivoil): X2P / XV-2P Series Group 2 4-bolt gear pumps
Brand Replacement
Quanzhou Hengyuhang Power Technology Co., Ltd. manufactures the Group 2PDF 4-Hole Fixed Series conforming to international OEM European 4-bolt rectangular mounting standards. Every manufactured pump undergoes 100% end-of-line verification, including volumetric efficiency benchmarking, continuous rated pressure testing, and port thread gauge inspection. Equipment operators and hydraulic distributors can replace worn or discontinued original pumps from CASAPPA, Rexroth, MARZOCCHI, PARKER, and DANFOSS with zero alterations to existing bell housings, electric motor couplings, or hydraulic plumbing. Custom batch manufacturing with specialized drive shafts, special flange spigots, or integrated relief valves is fully supported.
Applications
Mobile Construction Machinery: Mini excavators, compact wheel loaders, backhoe loaders, skid steers, vibratory rollers, and hydraulic trenchers requiring rigid 4-bolt bell-housing mounting.
Agricultural Equipment: Medium-to-high horsepower agricultural tractors, combine harvesters, round balers, front-end loaders, and forestry forwarders.
Material Handling & Aerial Lifts: Forklift main lifting and steering circuits, rough-terrain telehandlers, electric boom lifts, and truck-mounted tail lifts.
Stationary Industrial Hydraulic Power Units (HPUs): Machine tool lubrication manifolds, hydraulic press brake clamping systems, injection molding auxiliary loops, and hydraulic elevator power units.
Municipal & Specialty Vehicles: Waste compactor trucks, automated street sweepers, snow plows, and marine steering/winch systems.
Package & Shipping
| Item | Details |
|---|---|
| Packaging | Neutral heavy-duty export carton with internal molded foam suspension; individual moisture-resistant sealed VCI polybags; export standard fumigation-free wooden pallets for batch consignments. |
| Selling Unit | Single item (MOQ: 1 piece for standard models; low MOQ for customized OEM configurations). |
| Single Package Size | 25.0 × 18.0 × 16.0 cm (9.84 × 7.09 × 6.30 in) per pump. |
| Single Gross Weight | 2.90 to 4.50 kg (6.39 to 9.92 lbs) depending on displacement and flange material. |
| Standard Lead Time | 3–7 business days for stock items; 15–20 business days for volume OEM batch customization. |
| Logistics & Express | Air express (DHL, FedEx, UPS, TNT), air freight, sea freight (FCL / LCL), and multimodal door-to-door DDP services worldwide. |
| Customization Services | Custom nameplate laser engraving, private labeling, custom drive shafts, integrated valves, and bespoke flange geometries. |
| Warranty & Support | 12 months comprehensive warranty from dispatch date; full lifetime technical support. |
Why Choose Hengyuhang?
Direct Factory Precision Manufacturing & CNC Excellence: Equipped with multi-axis CNC machining centers, high-precision gear hobbing machines, and automated micro-honing lines, Hengyuhang maintains sub-micron dimensional tolerances (Ra < 0.2 μm) on all internal gear teeth, journals, and housing cavities. This guarantees minimal internal friction, ultra-low hydraulic pulsation, and repeatable performance across high-volume production batches.
100% Full-Cycle Multi-Parameter Factory Inspection: Every single hydraulic pump undergoes rigorous end-of-line digital testing before dispatch. Quality checks cover full continuous rated and peak pressure hold, internal bypass leakage verification, high/low temperature volumetric efficiency testing (>94%), and acoustic noise spectrum profiling, ensuring zero-defect delivery to global OEM assembly lines.
Seamless 1:1 OEM Drop-In Interchangeability: Conforming precisely to international European standard, SAE ("AA", "A", "B", "C"), and DIN/ISO mounting configurations, our pumps deliver genuine plug-and-play replacement for over 39 leading global manufacturers. Machine operators and distributors can replace original units without modifying bell housings, drive couplings, or hydraulic line geometry, drastically reducing costly machine downtime.
Flexible Engineering Customization & Rapid Prototyping: Backed by an experienced in-house hydraulic engineering team, Hengyuhang offers comprehensive bespoke customization, including non-standard 4PTF/6PTF mounting flanges, special shaft tapers or splines, dual port configurations, and integrated relief or priority flow control valves. We support low-MOQ trial orders and agile custom prototyping to resolve obsolescence issues for out-of-production machinery.
Robust Supply Chain, Extensive Inventory & Fast Global Dispatch: With dedicated raw material casting facilities, high-strength extruded aluminum alloy reserves, and extensive finished inventory across Group 0, Group 1, Group 2, and Group 3 platforms, standard orders ship within 48 to 72 hours. We partner strategically with major international logistics carriers (DHL, FedEx, UPS, air/ocean freight) to provide seamless door-to-door DDP global delivery.
12-Month Comprehensive Warranty & Lifetime Technical Support: All Hengyuhang hydraulic pumps are backed by a complete 12-month factory warranty and dedicated lifetime technical assistance. Our specialized fluid power engineers provide free 24-hour CAD drawing verification, OEM cross-reference confirmation, hydraulic displacement calculations, and system troubleshooting to ensure total operational peace of mind.
External Gear Pump Group 2PDF 4CC–30CC (4-Hole Rectangular Series) is a high-pressure external hydraulic gear pump engineered specifically for European and German standard 4-bolt rectangular mounting interfaces. Constructed with an extruded high-tensile aluminium alloy body, hardened alloy steel precision gear pairs, and pressure-balanced DU composite thrust bushings, this series covers 14 standard displacement sizes from 3 to 30 cm³/rev (covering the 4CC to 30CC working range), continuous operating pressures up to 270 bar (peak pressure up to 300 bar), and operating speeds up to 4000 r/min. Designed to meet standard European (71.5 × 96 mm, H0), German (70 × 100 mm, H1), European round-pilot (72 × 100 mm, H2), and heavy-duty outboard bearing (H3) 4-hole rectangular flange patterns with 1:8 taper, 1:5 taper, or cylindrical keyed drive shafts, this series delivers high volumetric efficiency, quiet running characteristics, and long-term mechanical durability in demanding mobile and industrial hydraulic systems.
| Applications
The Group 2PDF 4-hole rectangular series external gear pump is widely utilized across agricultural equipment (tractors, combine harvesters, round balers, front loaders), construction and earthmoving machinery (mini and compact excavators, wheel loaders, backhoe loaders, trenchers), material handling equipment (counterbalanced forklifts, electric pallet trucks, aerial work platforms), commercial truck hydraulics (tipper bodies, tail lifts, recovery vehicles), and stationary hydraulic power units requiring rigid 4-bolt rectangular mounting and continuous high-pressure fluid delivery.
| Key Specifications Overview
| Parameter | Specification |
|---|---|
| Series | Group 2PDF Series (4-Hole Rectangular Flange Configurations) |
| Displacement Range | 3 ~ 30 cm³/rev (14 standard ratings, covering 4CC–30CC) |
| Continuous Operating Pressure (P1) | 160 ~ 270 bar (270 bar for 3~12 cc; 250 bar for 14~18 cc) |
| Intermittent Operating Pressure (P2) | 170 ~ 285 bar |
| Max. Peak Pressure (P3) | 180 ~ 300 bar |
| Rotational Speed Range | 400 ~ 4000 r/min (displacement dependent) |
| Body Material | High-tensile extruded aluminium alloy body with cast aluminium or cast iron end covers |
| 4-Hole Rectangular Flanges | H0: 71.5 × 96 mm (Ø36.5 mm pilot); H1: 70 × 100 mm (Ø38 mm pilot); H2: 72 × 100 mm (Ø80 mm pilot); H3: 72 × 100 mm (Ø80 mm pilot with outboard bearing) |
| Drive Shafts | 1:8 Taper shaft (M12×1.25, 3.165 mm key); 1:5 Taper shaft (M12×1.5); Ø18 mm straight shaft with 6 mm key |
| Port Configurations | European 4-bolt flanged ports (M6 / M8) or threaded ports (BSPP / Metric) |
| Integrated Valve Options | Available with integrated priority flow control & relief valves (H0-FAx series, Qconst 2~30 L/min, P1 100~180 bar) |
| Rotation Direction | Clockwise (D) standard / Counter-clockwise (S) optional; 2PDM-H0 bi-directional motor available |
| Hydraulic Fluid | Mineral-based hydraulic oil (ISO VG 46 / HLP) |
| Operating Temperature Range | -20°C to +80°C (standard NBR seals) |
| Technical Parameters & Performance Ratings (Group 2PDF)
| Type / Model | Displacement (cm³/rev) | Max. Pressure (bar) | Max. Speed (r/min) | Min. Speed (r/min) | H0 Dimensions (mm) | H1 Dimensions (mm) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| P1 (Cont.) | P2 (Int.) | P3 (Peak) | M | L | M | L | ||||
| 2PDF-3-D* | 3.0 | 270 | 285 | 300 | 4000 | 800 | 91.1 | 43.6 | 91.1 | 43.6 |
| 2PDF-4-D* | 4.0 | 270 | 285 | 300 | 4000 | 600 | 92.7 | 44.4 | 92.7 | 44.4 |
| 2PDF-6-D* | 6.0 | 270 | 285 | 300 | 4000 | 600 | 96.0 | 46.0 | 96.0 | 46.0 |
| 2PDF-8-D* | 8.0 | 270 | 285 | 300 | 3500 | 500 | 99.3 | 47.7 | 99.3 | 47.7 |
| 2PDF-10-D* | 10.0 | 270 | 285 | 300 | 3000 | 500 | 102.6 | 49.3 | 102.6 | 49.3 |
| 2PDF-12-D* | 12.0 | 270 | 285 | 300 | 3000 | 500 | 105.9 | 51.0 | 105.9 | 51.0 |
| 2PDF-14-D* | 14.0 | 250 | 265 | 280 | 4000 | 500 | 109.3 | 52.7 | 109.3 | 52.7 |
| 2PDF-16-D* | 16.0 | 250 | 265 | 280 | 4000 | 500 | 112.7 | 54.4 | 112.7 | 54.4 |
| 2PDF-18-D* | 18.0 | 250 | 265 | 280 | 3600 | 400 | 116.0 | 56.0 | 116.0 | 56.0 |
| 2PDF-20-D* | 20.0 | 220 | 235 | 250 | 3200 | 400 | 119.3 | 57.7 | 119.3 | 57.7 |
| 2PDF-22-D* | 22.0 | 220 | 235 | 250 | 3000 | 400 | 122.6 | 59.3 | 122.6 | 59.3 |
| 2PDF-25-D* | 25.0 | 200 | 215 | 230 | 3000 | 400 | 127.6 | 61.8 | 127.6 | 61.8 |
| 2PDF-28-D* | 28.0 | 180 | 190 | 200 | 2500 | 400 | 132.6 | 64.3 | 132.6 | 64.3 |
| 2PDF-30-D* | 30.0 | 160 | 170 | 180 | 2500 | 400 | 135.9 | 66.0 | 135.9 | 66.0 |
| 4-Hole Rectangular Flange Configurations
| Flange Code | Mounting Pattern & Pilot | Drive Shaft | Port Connection |
|---|---|---|---|
| 2PDF-...-H0 | European rectangular 71.5 × 96 mm (Ø36.5 mm pilot, 4 × Ø9 mm holes) | 1:8 Taper shaft (M12×1.25, 3.165 mm key) | European 4-bolt flanged ports (4 × M6 / 4 × M8) |
| 2PDF-...-H1 | German rectangular 70 × 100 mm (Ø38 mm pilot, 4 × Ø9 mm holes) | Ø18 mm straight keyed shaft (6 mm key) | Flanged ports with M8 threads (38 mm spacing) |
| 2PDF-...-H2 | European rectangular 72 × 100 mm (Ø80 mm pilot, 4 × Ø9 mm holes) | 1:5 Taper shaft (M12×1.5, 3 mm key) | Cross-pattern 4-bolt flanged ports (4 × M6) |
| 2PDF-...-H3 | Heavy-duty rectangular 72 × 100 mm (Ø80 mm pilot with outboard bearing) | 1:5 Taper shaft Ø20 mm (M12×1.5, 4 mm key) | Cross-pattern 4-bolt flanged ports (4 × M6) |
| 2PDF-...-H0-FAx | European rectangular 71.5 × 96 mm with integrated priority valve | 1:8 Taper shaft (M12×1.25, 3.165 mm key) | Flanged inlet, controlled flow port M18×1.5, excess flow to tank |
| 2PDM-...-H0-Q1 | European rectangular 71.5 × 96 mm (hydraulic motor variant) | 1:8 Taper shaft (M12×1.25, 3.165 mm key) | Bi-directional flanged ports with G1/4 external case drain |
HENGYUHANG 2PDF / 2PDM Series — Complete Model List
2PDF Series — Type D*L0-R
| Type |
|---|
| 2PDF-3-D*L0-R |
| 2PDF-4-D*L0-R |
| 2PDF-6-D*L0-R |
| 2PDF-8-D*L0-R |
| 2PDF-10-D*L0-R |
| 2PDF-12-D*L0-R |
| 2PDF-14-D*L0-R |
| 2PDF-16-D*L0-R |
| 2PDF-18-D*L0-R |
| 2PDF-20-D*L0-R |
| 2PDF-22-D*L0-R |
| 2PDF-25-D*L0-R |
| 2PDF-28-D*L0-R |
| 2PDF-30-D*L0-R |
2PDF Series — Type D*H0-FAx
| Type |
|---|
| 2PDF-3-D*H0-FAx |
| 2PDF-4-D*H0-FAx |
| 2PDF-6-D*H0-FAx |
| 2PDF-8-D*H0-FAx |
| 2PDF-10-D*H0-FAx |
| 2PDF-12-D*H0-FAx |
| 2PDF-14-D*H0-FAx |
| 2PDF-16-D*H0-FAx |
| 2PDF-18-D*H0-FAx |
| 2PDF-20-D*H0-FAx |
| 2PDF-22-D*H0-FAx |
| 2PDF-25-D*H0-FAx |
| 2PDF-28-D*H0-FAx |
| 2PDF-30-D*H0-FAx |
2PDF Series — Type D*L0-Fx
| Type |
|---|
| 2PDF-3-D*L0-Fx |
| 2PDF-4-D*L0-Fx |
| 2PDF-6-D*L0-Fx |
| 2PDF-8-D*L0-Fx |
| 2PDF-10-D*L0-Fx |
| 2PDF-12-D*L0-Fx |
| 2PDF-14-D*L0-Fx |
| 2PDF-16-D*L0-Fx |
| 2PDF-18-D*L0-Fx |
| 2PDF-20-D*L0-Fx |
| 2PDF-22-D*L0-Fx |
| 2PDF-25-D*L0-Fx |
| 2PDF-28-D*L0-Fx |
| 2PDF-30-D*L0-Fx |
2PDF Series — Type D*H3
| Type |
|---|
| 2PDF-3-D*H3 |
| 2PDF-4-D*H3 |
| 2PDF-6-D*H3 |
| 2PDF-8-D*H3 |
| 2PDF-10-D*H3 |
| 2PDF-12-D*H3 |
| 2PDF-14-D*H3 |
| 2PDF-16-D*H3 |
| 2PDF-18-D*H3 |
| 2PDF-20-D*H3 |
| 2PDF-22-D*H3 |
| 2PDF-25-D*H3 |
| 2PDF-28-D*H3 |
| 2PDF-30-D*H3 |
2PDM Series — Type R*H0-Q1
| Type |
|---|
| 2PDM-3-R*H0-Q1 |
| 2PDM-4-R*H0-Q1 |
| 2PDM-6-R*H0-Q1 |
| 2PDM-8-R*H0-Q1 |
| 2PDM-10-R*H0-Q1 |
| 2PDM-12-R*H0-Q1 |
| 2PDM-14-R*H0-Q1 |
| 2PDM-16-R*H0-Q1 |
| 2PDM-18-R*H0-Q1 |
| 2PDM-20-R*H0-Q1 |
| 2PDM-22-R*H0-Q1 |
| 2PDM-25-R*H0-Q1 |
| 2PDM-28-R*H0-Q1 |
| 2PDM-30-R*H0-Q1 |
2PDF Series — Type D*H0
| Type |
|---|
| 2PDF-3-D*H0 |
| 2PDF-4-D*H0 |
| 2PDF-6-D*H0 |
| 2PDF-8-D*H0 |
| 2PDF-10-D*H0 |
| 2PDF-12-D*H0 |
| 2PDF-14-D*H0 |
| 2PDF-16-D*H0 |
| 2PDF-18-D*H0 |
| 2PDF-20-D*H0 |
| 2PDF-22-D*H0 |
| 2PDF-25-D*H0 |
| 2PDF-28-D*H0 |
| 2PDF-30-D*H0 |
2PDF Series — Type D*H1
| Type |
|---|
| 2PDF-3-D*H1 |
| 2PDF-4-D*H1 |
| 2PDF-6-D*H1 |
| 2PDF-8-D*H1 |
| 2PDF-10-D*H1 |
| 2PDF-12-D*H1 |
| 2PDF-14-D*H1 |
| 2PDF-16-D*H1 |
| 2PDF-18-D*H1 |
| 2PDF-20-D*H1 |
| 2PDF-22-D*H1 |
| 2PDF-25-D*H1 |
| 2PDF-28-D*H1 |
| 2PDF-30-D*H1 |
2PDF Series — Type D*H2
| Type |
|---|
| 2PDF-3-D*H2 |
| 2PDF-4-D*H2 |
| 2PDF-6-D*H2 |
| 2PDF-8-D*H2 |
| 2PDF-10-D*H2 |
| 2PDF-12-D*H2 |
| 2PDF-14-D*H2 |
| 2PDF-16-D*H2 |
| 2PDF-18-D*H2 |
| 2PDF-20-D*H2 |
| 2PDF-22-D*H2 |
| 2PDF-25-D*H2 |
| 2PDF-28-D*H2 |
| 2PDF-30-D*H2 |
2PDF Series — Type D*L0
| Type |
|---|
| 2PDF-3-D*L0 |
| 2PDF-4-D*L0 |
| 2PDF-6-D*L0 |
| 2PDF-8-D*L0 |
| 2PDF-10-D*L0 |
| 2PDF-12-D*L0 |
| 2PDF-14-D*L0 |
| 2PDF-16-D*L0 |
| 2PDF-18-D*L0 |
| 2PDF-20-D*L0 |
| 2PDF-22-D*L0 |
| 2PDF-25-D*L0 |
| 2PDF-28-D*L0 |
| 2PDF-30-D*L0 |
2PDF Series — Type D*K0
| Type |
|---|
| 2PDF-3-D*K0 |
| 2PDF-4-D*K0 |
| 2PDF-6-D*K0 |
| 2PDF-8-D*K0 |
| 2PDF-10-D*K0 |
| 2PDF-12-D*K0 |
| 2PDF-14-D*K0 |
| 2PDF-16-D*K0 |
| 2PDF-18-D*K0 |
| 2PDF-20-D*K0 |
| 2PDF-22-D*K0 |
| 2PDF-25-D*K0 |
| 2PDF-28-D*K0 |
| 2PDF-30-D*K0 |
2PDF Series — Type D*K1
| Type |
|---|
| 2PDF-3-D*K1 |
| 2PDF-4-D*K1 |
| 2PDF-6-D*K1 |
| 2PDF-8-D*K1 |
| 2PDF-10-D*K1 |
| 2PDF-12-D*K1 |
| 2PDF-14-D*K1 |
| 2PDF-16-D*K1 |
| 2PDF-18-D*K1 |
| 2PDF-20-D*K1 |
| 2PDF-22-D*K1 |
| 2PDF-25-D*K1 |
| 2PDF-28-D*K1 |
| 2PDF-30-D*K1 |
2PDF Series — Type D*K2
| Type |
|---|
| 2PDF-3-D*K2 |
| 2PDF-4-D*K2 |
| 2PDF-6-D*K2 |
| 2PDF-8-D*K2 |
| 2PDF-10-D*K2 |
| 2PDF-12-D*K2 |
| 2PDF-14-D*K2 |
| 2PDF-16-D*K2 |
| 2PDF-18-D*K2 |
| 2PDF-20-D*K2 |
| 2PDF-22-D*K2 |
| 2PDF-25-D*K2 |
| 2PDF-28-D*K2 |
| 2PDF-30-D*K2 |
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