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The Haskel DF-35 is a 1.5?HP single-acting pneumatic liquid pump designed for mid-pressure hydraulic applications. Featuring a nominal 35:1 (actual ~40:1) ratio, it delivers up to 5,700?psi using standard compressed air ideal for environments where sparks or heat are undesirable. Its compact stainless-steel build with UHMWPE dynamic seals ensures durability and corrosion resistance. The pump includes a stall-and-hold mechanism to maintain hydraulic pressure without continuous air consumption. With its versatility and reliability, the DF-35 is well-suited for hydrostatic testing, fluid transfer, clamp systems, and calibration.
- Air-powered operation no electricity or sparks
- Up to 5,700?psi hydraulic output at full stall pressure
- 1.5?HP drive with nominal 35:1 ratio (40:1 actual) for consistent performance
- Stall-and-hold design maintains pressure without consuming drive air
- Robust stainless-steel body with UHMWPE seals for long-term reliability
| Model / Part No. | DF-35 |
| Power Rating | 1.5 HP pneumatic |
| Nominal / Actual Ratio | 35:1 / ~40:1 |
| Max Pressure | 5,700 psi (393 bar) continuous |
| Displacement/Cycle | 1.16 in (~19 mL) |
| Drive Pressure Range | 3 125 psi (standard compressed air) |
| Seal Material | UHMWPE dynamic seals |
| Materials | Stainless steel body and piston |
| Stroke Type | Single-acting, compact design |
| Weight | ~24 lb |