Piston Accumulators B250 Series

The ASHUN B250 Series Piston Accumulators feature stable gas and fluid media separation, focusing on prolonged pressure maintenance. Certified to the PED Module H1 standard, they deliver compliant, long-lasting leakage compensation and temperature control for modern automation equipment.

Maximum System Working Pressure of 250 bar (3600 psi)
Piston Diameters Ranging from Ø80mm to Ø250mm
Standard Operating Piston Speed Maintained at 0.5 m/s
Standardized 5/8"-18UNF Gas Connection Valve

Specification

Specification	Parameters
Max. Pressure	250 bar (3600 psi)
Nominal Volume	0.5 L ~ 100 L
Piston Diameter	Ø80, Ø100, Ø160, Ø250 mm
Piston Speed	0.5 m/s
Operating Temp.	-30°C to +80°C (NBR)
Certificate Code	PED 2014/68/EU (Module H1)
Gas Connection	5/8"-18UNF

Description

Product Description

Designed for continuous-operation industrial machinery, the ASHUN B250 Series Piston Accumulators provide precise system pressure maintenance and thermal expansion absorption. Their patented end-cap structure is specifically reinforced to effectively block external moisture and airborne contaminants from penetrating the hydraulic circuit.

Backed by rigorous engineering calculations, we implement a micro-finishing process on both the gas and fluid sides. This craftsmanship ensures an ultra-low leakage rate within closed pressure-holding circuits, establishing them as reliable transfer barriers. Whether deployed in automated assembly lines or precision manufacturing tools, the B250 series guarantees long-term stability and equipment availability.

Product Features

Micro-Finished Surfaces: Internal surfaces on both the gas and fluid sides minimize operational friction for smooth actuation.
Compound Sealing Technology: Compound PTFE seals significantly enhance overall wear and extrusion resistance.
Kinetic Energy Absorption: Efficiently absorb hydraulic cylinder kinetic energy, acting as robust shock dampers for the system.
Rigorous Factory Testing: 100% factory-tested to assure reliable pressure integrity and system sealing before delivery.

Solutions

Construction Machinery

Construction equipment operates in punishing environments characterized by extreme climates, heavy dust, and intense vibration. Equipment stability is the ultimate key to maintaining project schedules. ASHUN provides highly durable custom hydraulic cylinders and high-torque rotary actuators specifically engineered for excavators, loaders, and heavy-duty construction vehicles. Our solutions feature superior anti-side-load capabilities and extreme precision, ensuring flawless performance under heavy loads, high pressure, and continuous operation—conquering the toughest job site challenges.

Lifting Equipment

Material handling equipment carries extreme risks to human safety and valuable assets; every lift and rotation must be flawless. For aerial work platforms (AWPs), cranes, tail lifts, and jacking systems, ASHUN delivers custom hydraulic cylinders integrated with fail-safe mechanisms and rotary actuators for high-precision positioning. We guarantee smooth, zero-leakage performance under heavy aerial loads and high-frequency lifting conditions.

Military and Aerospace

In defense and aerospace applications, mission success is paramount, and hydraulic system failures are strictly zero-tolerance. Certified by the AS9100 Aerospace Quality Management System, ASHUN provides custom hydraulic cylinders and high-torque rotary actuators engineered with exceptional safety factors for armored vehicles, radar antennas, and ground support equipment (GSE).

Agricultural Machinery

From soil preparation to harvesting, agricultural machinery is constantly exposed to mud, dust, and erratic weather. ASHUN provides weather-resistant, leak-proof custom cylinders and precision rotary actuators for tractors, combine harvesters, and diverse attachments. Our high-load capacity ensures uninterrupted, high-efficiency operation during critical farming seasons.

Smart Automation/Industry 4.0 or Robotics Industry

In the era of smart manufacturing, heavy robotics and automated equipment require actuation that combines high power density with precise data feedback. ASHUN empowers heavy-duty robotic arms, AGVs, and automated production lines with smart-sensor-integrated cylinders and high-precision rotary actuators, seamlessly bridging the gap between traditional hydraulics and Industry 4.0 servo-hydraulics.