Double Acting Hydraulic Cylinders

-- Steady & Reliable Manufacturer --

Double acting hydraulic cylinders represent the true backbone of modern industrial automation and mobile machinery, offering precise, bi-directional control over linear motion. Unlike alternative designs, these systems utilize pressurized hydraulic fluid to power both the extension stroke and the retraction stroke, providing predictable force and speed in both directions of travel. Jiangsu Hengcai Hydraulic Mechanical Co., Ltd. manufactures a diverse line of double-acting configurations that excel in high-precision positioning systems, complex mechanical linkages, and high-frequency cycling operations. By maintaining strict volumetric tolerances within the internal oil ports and piston assemblies, our cylinders ensure completely synchronized fluid movement. This dual-directional power dynamic eliminates the dependency on external forces, mechanical springs, or gravitational pull to return the rod to its starting position, giving machine operators complete control over complex mechanical movements through every millimeter of travel.

Key Features

Engineering Excellence at a Glance

Feature	Technical Advantage
Bi-Directional Power	Delivers high-efficiency pushing and pulling force for superior operational control.
Dual Port Integration	Optimized hydraulic porting ensures rapid fluid transfer and minimal backpressure.
Double-Lip Piston Seals	Prevents internal cross-port fluid bypass, maintaining constant holding pressure.
Versatile Stroke Profiles	Easily configured with internal linear transducers for precise electronic position feedback.

Specifications Guide

Hydraulic Cylinder Specifications Guide

Fluid Velocity Rating: Designed to support linear operating speeds up to 1.5 meters per second without generating excessive seal friction.
Port Layout: Standard inline ports, 90-degree rotations, or custom manifold mount configurations to optimize rigid plumbing layouts.
Piston Construction: Solid one-piece ductile iron or high-grade steel pistons machined with precise tolerances for exact alignment.
Maximum Static Pressure: Built to withstand static locking pressures up to 40MPa to maintain absolute position stability under load.
Tie-Rod or Welded Options: Available in compact welded body structures for mobile equipment or standard tie-rod designs for industrial machinery.

Selection Guide

How to Select a Hydraulic Cylinder

Evaluate Pushing vs. Pulling Force: Remember that pulling force is always lower due to the volume occupied by the piston rod; calculate area differentials accurately.
Determine Fluid Port Configurations: Choose between standard threaded ports or specialized high-pressure flanges based on your system flow rate.
Select Appropriate Electronic Feedback: For precise automated systems, select models pre-engineered to accept digital linear position sensors.
Analyze Cycle Frequency Requirements: High-frequency cycling requires specialized low-friction seals and optimized internal oil pathways to prevent heat buildup.

Why Choose Us

Why Choose HydraForce

Precision Manufacturing Control: Our internal honing operations achieve mirror finishes that drastically reduce frictional heat and wear on dual-acting seals.
Broad Configuration Versatility: We provide thousands of pre-engineered double-acting configurations, dramatically reducing custom engineering turn-around times.
Proven Field Reliability: Our double-acting lines are trusted by leading global OEMs in agriculture, construction, and factory automation systems.

FAQ

Frequently Asked Questions

Q: Why is the retraction force of a double-acting cylinder less than the extension force?
A: During retraction, the hydraulic fluid acts on the rod side of the piston. The total effective surface area is reduced because the cross-sectional area of the rod occupies space, resulting in lower force output compared to the full bore area used during extension.

Q: Can these double-acting cylinders be mounted in any orientation?
A: Yes, our double-acting cylinders are engineered to operate reliably in horizontal, vertical, or angled positions, provided the mechanical alignment avoids side-loading.

Jiangsu Hengcai Hydraulic Mechanical Co., Ltd.

Established in 1988, Jiangsu Hengcai Hydraulic Machinery Manufacturing Co., Ltd. has been dedicated to the research and development as well as the manufacturing of hydraulic cylinders. Situated in Jianhu County, Yancheng City, Jiangsu Province, the factory enjoys a strategic location with Dafeng Port to the east, Xuzhou to the west, Nantong to the south, and Lianyungang to the north. The Xinchang Railway traverses the area, and the 204 National Highway, Coastal Expressway, Yancheng-Xuzhou Expressway, and Ningjingyan Expressway crisscross the region, providing a well-connected transportation network. The proximity to Yancheng Nanyang International Airport, just a 70-kilometer drive away, has laid a solid foundation for the company's rapid growth.

As China Double Acting Hydraulic Cylinders Suppliers, our hydraulic cylinder products are widely used across various industries, including petroleum, chemical, marine, coal, metallurgy, engineering, construction, machine tools, agricultural machinery, and transportation, serving over 40 large and medium-sized main machine factories. Our products are also exported to the United States, Japan, Russia, and other countries and regions, accompanying the main machines, thus expanding our product's reach globally.

Adhering to the corporate spirit of "Advocate the persistence, endeavour for the winning," and the corporate philosophy of "Technological innovation and technology, people-oriented," we strive to provide reliable products and services in return for the trust of our valued customers.