Product Overview
The HASKEL 59015 is a pneumatically driven, reciprocating piston pump engineered for high-pressure liquid transfer and static pressure holding in industrial hydraulic and process systems. Manufactured by Haskel International, a recognized leader in air-driven pump technology, the 59015 utilizes a differential-area piston principle in which a large-diameter air drive piston acts on a smaller hydraulic plunger, producing an intensified output pressure proportional to the applied compressed air input. This design allows the pump to stall safely at a predetermined pressure without relief valve bypass, making it ideal for clamping, hydrostatic testing, and pressure-holding circuits. The unit operates on standard plant compressed air and requires no electrical connection, making it suitable for hazardous or remote installations.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Air-Driven / Pneumatic Intensifier) |
| Model Designation | HASKEL 59015 |
| Drive Principle | Reciprocating air drive piston with differential-area hydraulic plunger |
| Operating Pressure | Standard Industrial Grade (output pressure proportional to air drive input; up to rated bar) |
| Air Drive Supply | Standard filtered plant compressed air (typical 3–10 bar range) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
| Stall Condition | Holds pressure indefinitely without heat generation or bypass |
Engineering Features & Advantages
- Precision Performance: Differential-area piston design delivers smooth, controllable pressure intensification with accurate stall-pressure holding for critical clamping and testing operations.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust piston and seal construction suited to high-cycle duty.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards for drop-in service on existing Haskel installations.
- Intrinsically Safe Operation: Air-driven design eliminates electrical ignition risk, permitting use in hazardous, wet, or remote environments.
- No Relief Valve Required: Pump stalls at set pressure, reducing component count and simplifying circuit design.
Typical Industrial Applications
The HASKEL 59015 is widely deployed in plastic injection molding and die-casting machines for high-pressure clamping circuits, metallurgical presses and forging equipment requiring sustained holding force, hydrostatic and burst pressure testing benches for valves and pressure vessels, and CNC machine tool fixtures where reliable hydraulic clamping is essential. Its air-driven piston principle also suits offshore, marine, and oil & gas skids where electrical power is unavailable or undesirable.
PRODUCT IMAGES


HASKEL 59015 Air-Driven Liquid Pump
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine HASKEL 59015 Air-Driven Liquid Pump. This USA-made hydraulic component features a robust reciprocating design, delivering leak-free, reliable fluid pressure for demanding industrial systems.