Metric Hydraulic Cylinders

-- Steady & Reliable Manufacturer --

Metric hydraulic cylinders represent a major, universally implemented category of fluid power linear actuators engineered strictly according to millimeter-based dimensional frameworks and international metric industrial standards. These standardized cylinders serve as the main mechanical drivers for a vast range of heavy machinery, including European and Asian construction excavators, high-tech plastics injection molding machines, automated factory production lines, wind turbine pitch adjusters, and international maritime deck cranes. At Jiangsu Hengcai Hydraulic Mechanical Co., Ltd., we manufacture an extensive line of metric cylinders designed to combine global dimension compliance with exceptional pressure containment, smooth stroke performance, and zero-leak durability. Designing and manufacturing fluid power components in metric units requires precise control over geometric tolerances; every mounting element, internal bore diameter, piston rod thickness, and fluid port thread pitch must conform exactly to millimeter codes to ensure trouble-free replacement in the field. A replacement cylinder that deviates by even a fraction of a millimeter from standardized metric configurations can cause immediate alignment problems, severe pin binding, or destructive fluid leaks at plumbing joints. To eliminate these operational risks, our production plant utilizes advanced multi-axis CNC machining centers that work exclusively with precise millimeter blueprints. We hone our cylinder barrels and turn our high-tensile chrome rods to match strict ISO metric tolerance bands, such as H8 for internal walls and f7 for polished surfaces. Our metric cylinders feature premium multi-stage sealing packages that use standard metric dynamic rings, making sourcing replacement seals simple for maintenance crews worldwide. By combining strict metric dimension tracking with rugged structural engineering, our metric hydraulic cylinders provide the reliable performance and easy integration needed to optimize your international machinery fleets.

Key Features

Engineering Excellence at a Glance

Feature	Technical Advantage
Universal Metric Dimensional Matching	Ensures a perfect, drop-in replacement fit on all machinery designed to millimeter specifications.
Standard Millimeter Mounting Links	Features precise metric pinholes, clevis sizes, and flanges to prevent mechanical binding under load.
High-Precision Millimeter Honing	Holds internal barrel dimensions to strict metric ISO H8 tolerances to eliminate fluid bypassing.
Standardized Metric Fluid Ports	Outfitted with metric fine or BSPP threaded ports to ensure tight, leak-free plumbing connections.
Globally Sourced Metric Seals	Utilizes standard millimeter seal profiles, making routine field maintenance simple and straightforward.
Advanced Surface Plating Lines	Applies uniform chrome plating depths measured in precise microns to prevent rod corrosion.
Robust Compliance Profiles	Fully compliant with international metric codes, including ISO 6020/2 and DIN 24554 standards.

Specifications Guide

Hydraulic Cylinder Specifications Guide

Metric Bore Size Range Configurations: Precision manufacturing infrastructure covering inside diameters from 25mm up to large 500mm setups.
Linear Stroke Sizing Parameters: Available in standard millimeter lengths starting from 10mm up to large 6000mm configurations.
Continuous Circuit Working Pressure: Optimized for common metric systems operating continuously at 16MPa, 25MPa, and up to 31.5MPa safety thresholds.
Fluid Connection Port Styles: Outfitted with precise metric fine threads (ISO 6149-1) or parallel BSPP (ISO 1179-1) fluid connections.
Geometric Machining Tolerances: Bores machined to match strict ISO H8 roundness metrics; polished rods match precise f7 parameters.
Base Structural Metal Choices: Produced from premium carbon steel grades, including E355, CK45, or high-tensile 42CrMo4 alloy steel.
Internal Surface Roughness Metric: Precision honed internally to maintain a smooth roundness profile below Ra 0.2 microns to maximize seal life.

Selection Guide

How to Select a Hydraulic Cylinder

Verify Exact Millimeter Dimensions: Use digital calipers to measure the cylinder bore, rod diameter, and stroke length in precise metric units.
Identify the Governing Metric Code: Check if your machinery layout requires compliance with ISO 6020/2 compact or DIN 24554 tie-rod standards.
Confirm True Fluid Port Thread Profiles: Verify if the system plumbing requires metric O-ring fine threads or parallel BSPP connections.
Select Pin Mount Centerline Tolerances: Ensure the replacement cylinder's metric mounting distances match the original vehicle drawings.
Evaluate Machinery Operating Pressure Ratings: Choose components rated for standard metric Megapascal (MPa) system pressures to maintain safety factors.
Confirm Internal Sealing Sourcing Styles: Specify standard metric millimeter seal profiles to ensure simple, low-cost maintenance in the future.
Determine Environmental Protection Level Needs: Select proper micron-depth chrome plating or multi-layer coatings based on the machinery field conditions.

Why Choose Us

Why Choose HydraForce

Complete Metric Machining Tool Ecosystem: Our factory operates specialized CNC machinery designed to hold tight micron-level metric tolerances.
100% Compliance with International Codes: Every metric cylinder is engineered to match established global frameworks like ISO 6020/2.
Rigorous Dimensional Verification Testing Rooms: We utilize high-precision digital air gauges to verify millimeter tolerances across batches.
100% Comprehensive Pressure Verification Benches: Every component undergoes strict hydrostatic validation to guarantee zero leaks before leaving our facility.
Full Material Heat and Chemical Traceability: We provide detailed Mill Test Certificates for every production batch, ensuring total safety compliance.
Secure Heavy-Duty Export Packing Crates: Actuators are thoroughly oiled, wrapped in anti-corrosion barrier film, and secured in sturdy wooden boxes.

FAQ

Frequently Asked Questions

Q: What is the main difference between an ISO 6020/2 metric hydraulic cylinder and a standard imperial tie-rod model?
A: ISO 6020/2 defines a metric compact fluid power design with all dimensions, mounting locations, and fluid ports machined in millimeters, ensuring compatibility with international equipment lines.

Q: Can your factory supply replacement metric cylinders with custom BSPP parallel threaded fluid connection ports?
A: Yes, we machine metric cylinders with standard BSPP fluid connections conforming to ISO 1179-1 parameters, ensuring tight, leak-free seals with metric hose fittings.

Q: Why are metric-sized dynamic seals easier to maintain for machinery fleets operating outside North America?
A: Millimeter-based seal profiles conform to global standardized dimensions, allowing maintenance teams to easily source matching replacement parts from local distributors worldwide.

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 Metric 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.