Kracht KP2/32 S1XA K00 4DL1 Hydraulic Gear Pump
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Kracht KP2/32 S1XA K00 4DL1 High-Pressure Hydraulic Gear Pump
The Kracht KP2/32 S1XA K00 4DL1 is a gear pump engineered for demanding marine deck machinery, offshore installations, and industrial heavy-duty hydraulic circuits. Manufactured by Kracht GmbH in Werdohl, Germany, this unit features a heavy-duty grey cast iron housing (EN-GJL-250 / EN-GJL-300 class) combined with high-grade case-hardened alloy steel gearing to endure continuous hydraulic vibrations and cyclical shock loading.
Its hydraulic configuration incorporates hydrostatic kidney sliding plates that automatically balance axial play as circuit operating pressures shift, preventing internal bypass and cavitation across operating envelopes up to 250–300 bar. Designed with precision multi-compound plain bearings and standard SAE interfacing, this pump drops directly into auxiliary hydraulic power packs, steering gear boosters, winch drives, and lube oil transfer skids.
Model Details:
- Primary MPN: KP2/32 S1XA K00 4DL1
- Internal Kracht Part ID: P.0036070027 / W.5016005498 series family
- Tariff / HS Code: 8413.60.31 (Hydraulic fluid power gear-type rotary pumps)
Technical Details:
| Parameter | Technical Specification | Standard / Unit |
|---|---|---|
| Manufacturer | KRACHT GmbH (Werdohl, Germany) | ISO 9001:2015 |
| Pump Type | External Positive Displacement High-Pressure Gear Pump | Rotary Hydromechanical |
| Full Part Designation | KP2/32 S1XA K00 4DL1 | Kracht Type Key Matrix |
| Geometric Displacement | 31.5 cm³/rev (1.92 in³/rev) | Vg |
| Flow Output @ 1,450 RPM | ~43.5 – 44.2 L/min (at nominal 150 bar load) | Lpm (US GPM: 11.6) |
| Continuous Operating Pressure (pN) | 210 – 230 bar (3,045 – 3,335 PSI) | DIN 24312 |
| Intermittent Peak Pressure (pmax) | 250 – 280 bar (3,625 – 4,060 PSI) | Duty cycle < 6s (50% ED) |
| Inlet Port Pressure Range | -0.4 bar (vacuum) to +2.0 bar gauge | pe min / pe max |
| Operating Speed Range | 500 – 2,600 RPM | nmin – nmax |
| Direction of Rotation | Clockwise (Right-Hand, looking face-on at drive shaft) | Feed: Left to Right |
| Mounting Flange Format | SAE-B 2-Bolt Flange (Pilot Ø101.6 mm, Bolt Hole Spacing 146 mm) | ISO 3019-1 / SAE J744 |
| Shaft End Configuration | Taper / Conical 1:5 (Keyed, M14 lock-nut thread) | Cone 1:5 |
| Hydraulic Port Allocation | Inlet (Suction): SAE 1-1/4″ / Ø26 mm pattern | Outlet: SAE 1″ | ISO 6162-1 (Code 61) |
| Housing Material | High-grade Grey Cast Iron (EN-GJL-250 / EN-GJL-300) | DIN EN 1561 |
| Gear & Shaft Material | Case-hardened, ground, and honed carburized alloy steel | DIN 17210 (16MnCr5 / 17CrNiMo6) |
| Shaft Lip & Body Seals | NBR (Nitrile Butadiene Rubber) – Optional Viton/FKM | DIN ISO 1629 |
| Operating Fluid Temp Range | -20°C to +90°C (-4°F to +194°F) | θm max (NBR) |
| Operating Viscosity Range | 10 – 600 mm²/s (cSt); Recommended optimal: 30 – 45 mm²/s | νmin – νmax |
| Permissible Fluid Cleanliness | Class 19/16 acc. to ISO 4406 (Class 10 acc. to NAS 1638) | β25 ≥ 75 filtration rating |
| Dry Pump Mass | 12.8 kg (28.2 lbs) | Net Bare Weight |
Frequently Asked Questions
Can the Kracht KP2/32 S1XA K00 4DL1 be operated in reverse rotation?
No. The model code designates a fixed clockwise (Code 1) rotation pump. Because the internal hydrostatic balance plates and shaft seal relief galleries are ported specifically for flow from left to right, running this pump counter-clockwise will pressurize the radial lip seal, causing failure and housing bypass. For counter-clockwise applications, a Code 2 variant must be specified.
What is the difference between Kracht KP2 and KF series pumps?
While both are external gear pumps, the KP series is specifically built as a high-pressure hydraulic transmission pump capable of continuous operating pressures up to 210–300 bar with hydrostatic balance plates. In contrast, the KF series consists primarily of low-to-medium pressure transfer, circulation, and lubrication pumps typically operating at pressures up to 25–60 bar.
How do I verify if my shaft is a standard cylindrical or conical type?
Look at the shaft configuration letter in the model string. The model code K00 designates a Cone 1:5 tapered shaft with a threaded retention end and woodruff key. A straight cylindrical keyed shaft is designated by Y00. Verify your drive coupling bore before ordering.
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