OEM Factory Direct C55 CD55 Series ISO 21287 Compact Pneumatic Cylinder Manufacturer Double-Acting Single Rod Air Cylinder Compatible With SMC

Product Detailed Description：

The C55 Series is the definitive choice for engineers and machine builders who require uncompromising power in extremely limited spaces. By adhering to the ISO 21287 international standard, this series provides a universal mounting footprint that allows for seamless integration into global industrial systems. Its ultra-compact design enables significant machine downsizing without sacrificing the high-cycle reliability required in modern production environments.

Application Industries:

Automation & Assembly,Packaging Machinery,Electronics Manufacturing,Medical & Lab Equipment,Automotive Production,Textile Machinery,Woodworking Equipment,Food & Beverage Processing,Robotics & End-of-Arm Tooling,Machine Tool Manufacturing

Product Feature:

• Global ISO 21287 Standardization: Our C55 cylinders are built to precise international dimensions. This ensures a 100% "drop-in" replacement for standard compact cylinders used worldwide, allowing you to maintain or upgrade your systems without modifying your existing machine layout.
• High-Strength Stainless Steel Rod: Every unit is equipped with a high-grade stainless steel piston rod as standard. This provides excellent resistance to corrosion and wear, ensuring smooth operation and a long service life in demanding industrial conditions.
• Hard-Anodized Aluminum Construction: The cylinder body is crafted from high-density aluminum alloy with a hard-anodized finish. This process hardens the internal surface, reducing friction and protecting against oxidation.
• Smart Position Feedback: The body features integrated longitudinal grooves on multiple sides. These slots are designed for the seamless mounting of proximity sensors (magnetic switches), enabling precise position detection and easy integration with PLC systems.
• Noise & Vibration Control: Built-in high-resilience rubber bumpers at both ends absorb kinetic energy at the end of the stroke, effectively reducing impact noise and mechanical stress.

Specification：

Customization Options

Product Advantages

• ISO 21287 Standard Compliance — International dimensional standard for compact cylinders. Guaranteed interchangeability with Festo ADN/AEN, Airtac ACE, Parker P1P, and all ISO 21287-compliant brands. Same mounting hole pattern, port positions, and rod-end dimensions across all compliant manufacturers.

• SMC C55/CD55 Series Fully Compatible — Identical ISO 21287 mounting dimensions, port positions, and rod-end threads. True drop-in replacement for SMC C55, C55B, CD55, CD55B, and C55-Z series — zero machine modification.

• 1.8× Anti-Lateral Load Capacity — Superior resistance to side loads compared to previous-generation compact cylinders. Unique rubber bumper + piston wear ring + rod bushing combination distributes lateral forces more effectively, reducing rod bushing wear and extending service life.

• 10 Bore Sizes: 12–100mm — Widest compact cylinder range. From micro ø12 for sensor actuation to powerful ø100 for heavy fixture clamping. Covers virtually every compact-format application in one product family.

• Rubber Bumper Cushioning (Both Ends) — Built-in rubber bumper absorbs end-of-stroke impact without external shock absorbers. Quieter operation, simpler design, zero maintenance. No needle valve adjustments needed.

• Ultra-Compact ISO Form Factor — Shorter overall length than ISO 15552 cylinders of equivalent bore. Mounts in tight machine envelopes where standard cylinders won't fit. Ideal for dense multi-station automation layouts.

• 4-Surface Auto Switch Mounting — Integrated sensor grooves on all four body surfaces. Mount reed or solid-state position sensors in any orientation. CD55 variant includes pre-installed magnetic piston for plug-and-play sensor compatibility.

• Double Rod Variant Available — C55W (double rod / through-rod) provides equal force in both directions and synchronized dual-end actuation from the same compact form factor.

• Female Rod Option Standard — C55B/CD55B variants feature female (internal) rod-end thread. Ideal for flush-mount tooling, direct accessory attachment, and applications where the male rod protrusion is undesirable.

• 8-Year Factory Expertise — Direct from Zhejiang Jinzhi Pneumatic Technology Co., Ltd. (AIRWORK). 100+ CNC machining centers, CE/ISO certified, shipped to 120+ countries. Engineering support for custom compact cylinder solutions.

Application：

• Automated Assembly and Precision Robotics：

In the high-speed electronics and automotive assembly sectors, minimizing the weight and size of end-effectors is crucial. The C55 series, with its ultra-compact ISO 21287 design, allows engineers to create smaller, lighter robotic grippers and high-density assembly jigs. It provides the high clamping and positioning force required for delicate part handling while significantly reducing the overall machine footprint, enabling higher throughput in 24/7 automated production environments.

• Electronics and Semiconductor Manufacturing：

Precision and cleanliness are non-negotiable in semiconductor processing. Our C55 cylinders are designed for non-lube operation, ensuring zero oil-mist contamination in sensitive cleanroom environments. The combination of a stainless steel rod and a hard-anodized body provides the chemical resistance needed for wafer handling and PCB testing fixtures. Standardized dimensions ensure that international manufacturers can easily source these actuators as reliable replacements for their high-tech production lines.

• High-Density Packaging and Sorting Systems：

In modern food and pharmaceutical packaging, space optimization is key. The C55 series is widely utilized for sorting, pushing, and lifting in high-frequency secondary packaging machinery. Its short profile allows multiple units to be mounted in tight manifold configurations. The durable internal seals and integrated bumpers are built to withstand the constant vibration and high-speed cycles typical of automated labeling and small-item sorting, drastically reducing maintenance intervals and downtime.

Installation and Usage：

• Air Filtration: Utilize 40μm filtered, dry compressed air to protect internal components. Proper air quality prevents premature seal wear and maintains the integrity of the stainless steel piston rod.
• Speed Regulation: Always use flow control valves to manage piston speed within the 50-500mm/s range. Controlling speed prevents excessive impact energy from damaging the internal rubber bumpers and sensors.
• Axial Alignment: Ensure the load is perfectly aligned with the piston rod axis. Avoiding side loads is critical to reducing internal friction and preventing leakage at the rod seal.
• Secure Mounting: Mount the cylinder on a rigid, flat surface using the standard through-holes. Tighten all bolts to the recommended torque to ensure stability during high-frequency industrial operation.
• Sensor Installation: Secure position sensors into the integrated body grooves for accurate feedback. Avoid proximity to strong external magnetic fields to ensure the internal magnetic piston provides reliable, false-free signals.

FAQ

Q1. Is the C55 series compatible with international standard cylinders?

A1.Absolutely. Our C55 series is manufactured in strict accordance with the ISO 21287 international standard, ensuring it is 100% interchangeable with any actuator following the same global mounting footprint.

Q2.What materials are used for the main components?

A2.We use Hard-Anodized Aluminum Alloy for the cylinder barrel and High-Grade Stainless Steel for the piston rod. This combination ensures maximum durability and superior resistance to corrosion and wear.

Q3.Can these cylinders operate without external lubrication?

A3.Yes, the C55 series is designed for non-lube operation. It comes pre-lubricated with high-performance grease, providing smooth actuation while ensuring a clean, oil-free environment for sensitive applications.

Q4.Does the cylinder include a magnet for position sensing?

A4.We offer both magnetic and non-magnetic versions. The magnetic version allows for the easy installation of standard D-M9 series proximity switches into the body’s integrated mounting grooves.

Q5.What is your warranty and quality assurance policy?

A5.Every cylinder undergoes 100% leak and performance testing. We provide a 12-month quality warranty and professional technical support. As a factory, we guarantee immediate replacement for any manufacturing-related issues.

Q6.Do you support OEM and ODM customization services?

A6. Yes, we offer comprehensive OEM/ODM support. We can laser-mark your own brand logo, customize non-standard stroke lengths, and provide various rod-end options to match your specific engineering requirements.

Q7. What is your standard lead time for shipping orders?

A7. For standard bore sizes and stroke lengths, we typically ship within 3-7 business days. Bulk orders or custom OEM projects generally require 10-15 days, depending on the production schedule.

Q8.Are you a trading company or the actual source factory?

A8.We are a specialized source factory for pneumatic components. We own the full production line, ensuring you get the best price-to-quality ratio and direct technical support.

Q9.What is the maintenance schedule for C55 compact cylinders?

A9.C55 cylinders are factory pre-lubricated and designed for oil-free operation with clean, filtered compressed air.

Weekly: Visual check — no air leaks at ports or rod seal. Rod surface clean, no scoring. Rubber bumper intact and not deteriorating.

Monthly: Verify auto switch function and positioning (CD55). Check mounting bolt torque. Inspect rod bushing for play.

Every 2 million cycles or 6 months: Inspect rod seal (wiper) for leakage. Check rod bushing for radial wear. Replace rubber bumper if hardened, cracked, or compressed.

Every 5 million cycles or 12 months: Replace full seal kit — piston seal, rod seal, wiper, wear ring, O-rings. Check rod straightness and chrome surface. Clean internal bore.

Factory Advantages and Certifications

Company Introduction 1

Company Introduction 2

Certification