Norgren KM/8021/M/135 Pneumatic Cylinder - ISO 6432
Part Number: KM/8021/M/135
Quick Summary
Norgren KM/8021/M/135 is a stainless steel double-acting pneumatic cylinder for precise linear actuation in food-processing lines. Operators often struggle with corrosion, hygiene constraints, and downtime when choosing unsuitable cylinders. The design adheres to ISO 6432, uses food-grade stainless steel, and features a magnetic piston for reliable sensing. This combination supports efficient cleaning, long service life, and regulatory readiness, delivering lower maintenance costs over time. Its adjustable cushioning and G1/8 port enable quick installation and tailored damping across varying cycle demands. With a 20 mm diameter, 135 mm stroke, and 188 N theoretical force, it covers a wide actuation range. In practice, it fits standard KM/8000/M configurations and complements automation strategies in hygienic production.
Product Information
Extended Description
KM/8021/M/135 Norgren: High corrosion and acid resistance | Magnetic piston as standard | Conforms to ISO 6432 | Suitable for applications in the food industry | Buffer or adjustable cushioning | Nose mounting nut and piston rod locknut as standard
Medium
Compressed air
Operating Temperature
-10 ... 80 °C, 14 ... 176 °F
Operating Pressure
1 ... 10 bar, 15 ... 145 psi
Standard
ISO 6432
Port Size
G1/8
Cylinder diameter
20 mm
Stroke Length
135 mm
Operation
Double acting
Cushioning
Adjustable cushioning
Magnetic/Non-magnetic
Magnetic
Theoretical Force
188 N
Materials - Barrel
X5 Cr Ni 18 10 (1.4301: AISI 304)
Materials - Piston Rod
X10 Cr Ni S 18 9 (1.4305: AISI 303)
Country of Origin
Germany
Range
KM/8000/M
Brand
IMI Norgren
Feature: Stainless steel barrel and corrosion-resistant piston rod provide long service life in challenging environments. Business Impact: Reduces maintenance downtime and replacement costs in demanding washdowns and caustic processes. Application: Food processing and hygienic automation lines. The feature addresses a common objection about corrosion resistance and is ideal for high-hygiene applications. Feature: ISO 6432 compatibility ensures standard mounting and interchangeability with existing systems. Business Impact: Faster line integration and reduced engineering time. Application: Retrofit projects and new lines using KM/8000/M components. Feature: Magnetic piston enables non-contact sensing for reliable position feedback. Business Impact: Improves control accuracy and allows clean wiring or sensorless monitoring in compact layouts. Application: Automated pick-and-place and end-of-arm tool actuations. Feature: Adjustable cushioning provides tuned impact absorption and quieter operation. Business Impact: Extends cylinder life and reduces vibration-induced failures in high-speed cycles. Application: High-cycle packaging and labeling stations. Feature: G1/8 port size and 20 mm bore deliver compact yet powerful actuation. Business Impact: Simplifies air line routing and minimizes footprint. Application: Dense automation cells requiring compact cylinders. Feature: -10 to 80 °C operating range and 1–10 bar pressure range offer robust performance in diverse environments. Business Impact: Broadest compatibility with standard compressed air systems and washdown protocols. Application: Food, beverage, and pharmaceutical production lines. Feature: Theoretical 188 N force supports a wide range of actuation demands while maintaining compact form. Business Impact: Predictable load handling and improved cycle timing. Application: Robotic feeding, clamping, and lifting tasks. These features collectively enable easier installation, dependable performance, and a lower total cost of ownership in hygienic automation settings.
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FAQs
The KM/8021/M/135 is ISO 6432 compliant and designed for straightforward mounting with standard KM/8000/M hardware. Use the G1/8 port for compressed air connections and secure the cylinder with nose mounting nuts and piston rod locknuts as specified. Ensure alignment and avoid side loading to maximize stroke accuracy and service life.
The cylinder operates from -10 to 80 °C (14 to 176 °F) and supports 1 to 10 bar (15 to 145 psi) of compressed air. This range makes it suitable for hygienic production environments and typical industrial automation lines where cleanability and stable actuation are required.
Yes. The cylinder uses X5CrNi18-10 (AISI 304) barrel material and X10CrNiS18-9 (AISI 303) piston rod, delivering high corrosion and acid resistance. Combined with magnetic piston sensing and adjustable cushioning, it supports hygienic cleaning, reliable operation, and regulatory-aligned performance in food-grade applications.
The KM/8021/M/135 includes a magnetic piston as standard, enabling non-contact position sensing. This simplifies sensor integration on compact lines and reduces wiring complexity, while maintaining precise feedback for control systems in automated cycles.
With a 20 mm bore, 135 mm stroke, and a theoretical force of 188 N, the cylinder is well-suited for mid-range actuation tasks such as clamping, lifting, or feed/withdraw cycles in packaging and portioning stations. When sizing, account for dynamic loads, friction, and cushioning to ensure reliable cycling and longevity.