Cast iron Hydraulic Gear Pump 2PTF SAE A 2-Bolt Oval Flange Series

1. Overview of HENGYUHANG Group 2PTF Cast Iron External Hydraulic Gear Pumps

The HENGYUHANG Group 2PTF Series represents the pinnacle of extreme-duty external gear pump engineering, featuring an all-cast-iron three-piece body construction specifically developed for severe hydraulic circuits where conventional aluminum-body pumps suffer fatigue, thermal dilation, or pressure-induced deformation. Covering an expansive displacement spectrum from 4.95 up to 33.03 cm³/rev (4CC to 33CC), the 2PTF series withstands continuous operating pressures up to 285 bar (4,133 psi) and peak spike pressures up to 330 bar (4,785 psi). It provides direct 1:1 drop-in replacement across 39 leading international hydraulic manufacturers without requiring mounting bracket alterations or hydraulic line modifications.

Engineered from high-density, spheroidal graphite ductile cast iron across the front mounting flange, central gear housing, and rear cover, the 2PTF pump offers superior mechanical stiffness, exceptional resistance to cavitation erosion, and inherent acoustic dampening properties that significantly reduce operational noise in enclosed mobile cabs and indoor industrial plants. The internal assembly incorporates case-hardened, precision-ground micro-geometry alloy steel gears supported by heavy-duty hydrodynamic DU/PTFE composite journal bushings. Dual hydrostatic floating axial pressure balance thrust plates dynamically compensate for operating clearances across varying thermal and pressure conditions, sustaining volumetric efficiencies above 94% even under continuous high-cyclic load regimes.

2. Dimension of HENGYUHANG Group 2PTF Cast Iron External Hydraulic Gear Pumps

Interface data needed with the drawing:

3. Pump Installation Specifications HENGYUHANG Group 2PTF Cast Iron Series

The HENGYUHANG Group 2PTF Cast Iron Series pump utilizes a standardized modular ordering and specification code to ensure precise mechanical, hydraulic, and mounting interchangeability:

Code structure — reference: 2PTF — Group 2 Extreme High-Pressure Cast Iron External Gear Pump Series

Reading your replacement code:

4. Techspecs of HENGYUHANG Group 2PTF Cast Iron Series

Performance Data Across Displacements

Operating Conditions & Fluid Compatibility

| Advantages of HENGYUHANG Group 2PTF Cast Iron Series

Extreme Pressure Capability (Peak up to 330 bar / 4,785 psi): Engineered with an all-ductile-cast-iron casing that eliminates barrel expansion and internal pressure blowout, allowing safe continuous operation at pressures up to 285 bar and intermittent duty up to 300 bar.

Superior Fatigue & Cavitation Resistance: High-strength spheroidal graphite cast iron dampens severe pressure pulsations and withstands transient hydraulic shocks and cavitation cycles far better than conventional extruded aluminum housings.

Direct 1:1 OEM Drop-In Interchangeability: Fully matches Casappa Polaris cast iron, Rexroth AZPG, Marzocchi GHP2, and Parker PGP511 mounting dimensions, shaft tapers, and flanged port centers across 39 leading global brands.

Thermal Stability in Extreme Duty Cycles: Cast iron's thermal expansion coefficient closely matches the steel gear rotating group, preserving micro-clearance tolerances and preventing internal seizure under severe continuous industrial and desert field conditions.

High Volumetric Efficiency (>94%): Dual hydrostatic floating thrust plates dynamically maintain perfect axial gear tooth face sealing, minimizing internal slip over thousands of operating hours.

Acoustic Dampening & Low Noise: The dense cast iron mass absorbs gear meshing vibrations and high-frequency fluid noise, ensuring exceptionally quiet operation in enclosed operator cabins.

| Reference of HENGYUHANG Group 2PTF Cast Iron Series

| Series Architecture Across Group 2PTF Series

The HENGYUHANG Group 2PTF Cast Iron family covers 9 standardized displacements, ensuring optimal hydraulic matching:

• Ultra-High Pressure Range (4.95 – 8.26 cm³/rev, up to 330 bar peak): 2PTF4, 2PTF6,3, 2PTF8

• High-Pressure Work-Horse Range (11.23 – 16.85 cm³/rev, up to 320 bar peak): 2PTF11,2, 2PTF14, 2PTF16

• High-Delivery Output Range (21.14 – 33.03 cm³/rev, up to 250 bar peak): 2PTF20,2PTF25, 2PTF31,5

| Comprehensive Interchangeability Matrix Across 39 Brands

The HENGYUHANG Group 2PTF Cast Iron Series provides proven mechanical, mounting, and hydraulic drop-in substitution for the following 39 international manufacturers:

• ARGO-HYTOS: GP2 Series cast iron external gear pumps

• ASEDA: Group 2 European cast iron tractor implement gear pumps

• ATOS: PFG-2 / PFE series heavy cast iron external gear pumps

• B&C Hydraulics: GR2 series heavy cast iron gear pumps

• BLUEASCEND: Group 2 cast iron gear pumps for mobile machinery

• Boden: Boden B2 / BG2 cast iron hydraulic gear pumps

• BONDIOLI & PAVESI: HP Series Group 2 cast iron gear pumps (HP2, HPL2)

• Brevini Fluid Power (Dana Brevini): OT200 / B200 series heavy cast iron pumps

• BUCHER Hydraulics: AP212 / AP200 series cast iron high-pressure gear pumps

• Caproni: 20A / 20C / Group 2 cast iron hydraulic gear pumps

• CASAPPA: POLARIS Cast Iron (PLP20, KP20, PHP20 Whisper Cast Iron) gear pumps

• CONCENTRIC (Haldex): W900 / Calzoni Group 2 cast iron external pumps

• DANFOSS Power Solutions: SNP2NN / Turolla D Series heavy cast iron Group 2 pumps

• DUPLOMATIC: IGP2 / GP2 series cast iron external gear pumps

• Galtech: 2SP series heavy cast iron gear pumps

• GRH Hydraulics: 2PTF series cast iron gear pumps

• HANSA-TMP: Group 2 cast iron gear pumps and power pack units

• HESPER: Group 2 cast iron mobile hydraulic gear pumps

• HIDRAULICA: Group 2 cast iron external gear pumps

• HONOR Gear Pumps: Group 2 cast iron series pumps

• HPI (Hydraulique Professionnelle Industrielle): Series M2 / P2 cast iron gear pumps

• HYDAC: PGE102 series cast iron external gear pumps

• HYDROMAX: Group 2 cast iron external hydraulic gear pumps

• HYDRONIT: Group 2 cast iron power pack central block gear pumps

• JIHOSTROJ: P23 / Q2 Series Group 2 cast iron hydraulic gear pumps

• JOYANG: Group 2 cast iron gear pumps for material handling

• KOMPASS: Group 2 cast iron industrial gear pumps

• KRACHT: KF 2 / KP 2 series cast iron high-performance gear pumps

• MARZOCCHI: GHP2 / ALP2 series cast iron high-pressure gear pumps

• MetaHydra: Group 2 cast iron custom gear pumps

• PARKER Hannifin: PGP511 Cast Iron Series Group 2 gear pumps

• REXPOWER: Group 2 cast iron external gear pumps

• Bosch Rexroth: AZPG AZPF Series cast iron Group 2 gear pumps

• REXROTH-SIGMA: Sigma Group 2 cast iron gear pumps

• RONZIO: 02 Series Group 2 cast iron high-pressure gear pumps

• ROQUET: 2L / 2M Series Group 2 cast iron external gear pumps

• SALAMI: 2PB / 2PE series cast iron heavy-duty gear pumps

• SDH (Shengda Hydraulics): Group 2 cast iron gear pumps

• VIVOLO (Vivoil): X2P / XV-2P Series heavy-duty Group 2 gear pumps

| Brand Replacement

Quanzhou Hengyuhang Power Technology Co., Ltd. manufactures the Group 2PTF Cast Iron Series conforming to international OEM heavy-duty 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 of HENGYUHANG Group 2PTF Cast Iron Series

• Mobile Construction Machinery: Mini and compact excavators, skid steer loaders, compact wheel loaders, vibratory rollers, and hydraulic trenchers subject to extreme cyclic pressure spikes.

• Agricultural & Forestry Equipment: Medium-to-high horsepower agricultural tractors, timber harvesters, feller bunchers, round balers, and heavy front-end loader attachments.

• Material Handling & Aerial Lifts: Heavy counterbalanced forklifts, rough-terrain telehandlers, container side-loaders, and aerial work platform drive systems.

• Stationary Industrial Hydraulic Power Units (HPUs): High-pressure hydraulic press clamping circuits, continuous machine tool lubrication loops, injection molding auxiliary hydraulics, and foundry handling systems.

• Municipal & Specialty Vehicles: Waste compactor trucks, municipal road sweepers, snow plows, and marine winch drive mechanisms.

| Package & Shipping

| 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.