AILESEN(CHANGZHOU)POWER TECHNOLOGY CO.,LTD

                            AHP3500 Air-Driven High Pressure Pump

The AHP3500 is a heavy-duty air-operated hydraulic pump independently developed by Ailesen (Changzhou) Power Technology Co., Ltd. It converts compressed air power into ultra-high hydraulic pressure, specially designed for ultra-high-pressure industrial scenarios that prohibit electric ignition sources. Driven entirely by air, it features explosion-proof performance, stable pressure boosting, automatic pressure hold and stop functions, and serves as the core power source for fuel injector test benches, bolt tensioners, high-pressure hydrostatic testing, marine diesel maintenance and calibration equipmentaileseng.c...

2. Core Working Principle

Compressed air pushes the large-area air piston to reciprocate continuously, driving the small-diameter high-pressure plunger to compress hydraulic oil for pressure amplification. Once the preset hydraulic pressure is reached, the pump automatically suspends cycling and maintains constant pressure without continuous air consumption; it restarts automatically when system pressure drops, realizing unattended constant-pressure operation with low energy waste.

3. Key Technical Specifications

Max Hydraulic Output Pressure: 350 MPa (3500 bar / 50,760 psi) at 0.7 MPa input air pressure; 280 MPa at 0.6 MPa air supplyaileseng.c...

Cycling Speed: ~400 cycles per minute under 0.7 MPa air input

Oil Flow Rate: Minimum output flow 0.45 L/min

Air Consumption: Approx. 1050 L/min at 0.6 MPa air pressure

Built-in Oil Tank: 8 L capacity

Port Thread Standard: Air inlet G1/2 internal thread; high-pressure oil outlet G1/4 internal thread

Overall Dimension: 490 × 430 × 480 mm

Net Weight: About 30–32 kg

Standard Equipments: Dual glycerin-filled vibration-resistant pressure gauges (air pressure + hydraulic pressure), pressure regulating valve, quick pressure relief valve, integrated filter-lubricator unit, portable carrying handle and sturdy metal frame

4. Outstanding Product Features

Intrinsically Safe & Explosion-Proof

No electric motor or electrical components, suitable for flammable, explosive, damp or underground working environments such as chemical plants, oil & gas fields and ship engine rooms.

Ultra-High Stable Pressure Output

Precise pressure amplification structure delivers steady ultra-high pressure with minimal pressure fluctuation, supporting high-precision calibration and testing work.

Automatic Pressure Holding & Energy Saving

Auto-stop upon target pressure, auto-restart for pressure compensation; avoids idle cycling and greatly reduces compressed air consumption.

Simple Operation & Easy Maintenance

Independent control knobs for air pressure adjustment, high-pressure output and quick pressure release; modular pump head design for fast disassembly, cleaning and part replacement without professional tools.

Durable Heavy-Duty Structure

Core pressure-bearing components adopt high-strength alloy steel with precision grinding and anti-leakage sealing kits, resisting long-time continuous high-load operation; integrated anti-vibration structure lowers running noise.

Compact Portable Layout

Integrated oil tank and pump body with top carrying handle, easy to move between workshops, test benches and on-site maintenance locations.

5. Main Industrial Applications

Marine diesel injector test & calibration benches

Ultra-high-pressure bolt tensioning for petrochemical pipelines, pressure vessels

Hydrostatic pressure testing of high-pressure pipes, valves and hydraulic components

Laboratory high-pressure fluid pressurization and pressure calibration

Mining, offshore and shipyard explosion-proof high-pressure hydraulic operations

Hydraulic power supply for ultra-high pressure clamping tools

6. Operating Advantages Compared with Electric Pumps

Zero ignition risk, fully compliant with explosion-proof site regulations

Lighter and more flexible for field mobile maintenance

No overload burnout risk; self-protects automatically under pressure holding status

Lower long-term operating cost by saving compressed air and maintenance expenses

Short Version (for Catalogue / Product Card)

AHP3500 Air-Driven Ultra High Pressure Hydraulic Pump

A pneumatic power unit reaching max 350 MPa hydraulic pressure, explosion-proof, auto pressure hold, compact integrated design. Widely used for injector testing, bolt tensioners and hydrostatic pressure test in marine, oil & gas and chemical industries. Stable output, easy operation and low maintenance cost.