Norgren RA/8250/M/320 ISO tie rod cylinder - ISO 15552
Part Number: RA/8250/M/320
Quick Summary
Norgren RA/8250/M/320 is an ISO tie rod double-acting cylinder designed for robust linear actuation in standard automation lines. In high-cycle environments, misalignment and inconsistent stroke can drive downtime and costly reworks. The unit conforms to ISO 15552, ISO 6431, VDMA 24562 and NFE 49-003-1, ensuring interchangeability, reliability, and easy maintenance. Its 250 mm bore and 320 mm stroke equip you for demanding positioning tasks, while a wide range of mountings and a magnetic piston option support quick retrofits and scalable automation across varied equipment.
Product Information
Extended Description
RA/8250/M/320 Norgren: Conforms to ISO 15552, ISO 6431, VDMA 24562 and NFE 49-003-1 | High performance, ruggedness and reliability | Extensive range of mountings
Medium
Compressed air
Operating Temperature
-10 ... 80 °C, 14 ... 176 °F
Operating Pressure
1 ... 10 bar, 15 ... 145 psi
Standard
ISO 15552
Port Size
G1
Cylinder diameter
250 mm
Stroke Length
320 mm
Operation
Double acting
Cushioning
Adjustable cushioning
Magnetic/Non-magnetic
Magnetic
Theoretical Force
29436 N
Materials - Barrel
Anodised aluminium
Materials - Piston Rod
Stainless steel (martensitic)
Range
RA/8000/M
Series
ISO/VDMA Actuator
Brand
IMI Norgren
M/P19446
Wide hinge style SW, 250mm bore
QM/8250/35
A - Front or Rear Stud Mounting 250mm/320mm bore
QM/8250/32
UF - Universal Piston Rod Mounting 250mm bore
QM/8250/25
F - Piston Rod Clevis Mounting 250mm bore
QM/8250/22
BG - Front / Rear Flange Mounting 250mm bore
QM/8250/21
C - Foot Mounting 250mm bore
QM/8250/23
D - Rear Clevis Mounting 250mm bore
QM/31/250/22
Switch mounting brackets, 250mm bore
QM/8250/33
UR - Universal Rear Eye Mounting 250mm bore
QM/8250/28
H - Trunnion Mounting 250mm bore
QA/8250/00
Service kits for PRA/802, RA/802, PRA/182, RA/182, or RA/8000, 250mm
QM/32/5
QM/32 magnetically operated reed switch, 5m cable
Feature: ISO conformity and standardization; Business Impact: Enables rapid design, interchangeability, and reduced spare-parts stock; Application: Retrofit projects and multi-vendor automations. Feature: 250 mm bore and 320 mm stroke with high thrust (29436 N); Business Impact: Handles heavy-duty push/pull cycles with consistent repeatability; Application: Material handling and presses on automated lines. Feature: Adjustable cushioning and double-acting operation; Business Impact: Smooth starts and stops, reduced shock, longer tool life; Application: Pick-and-place and assembly with precision timing. Feature: Rugged construction (anodised aluminium barrel, stainless steel piston rod); Business Impact: Corrosion resistance and extended service life in dirty environments; Application: Industrial manufacturing floors. Feature: Wide mounting options and magnetic piston; Business Impact: Flexible installation, quick retrofits, and easy integration with sensors; Application: OEM equipment and line modernization. Feature: Certifications and standards (ISO 15552, ISO 6431, VDMA 24562, NFE 49-003-1); Business Impact: Ensures regulatory compliance and cross-vendor compatibility; Application: Global manufacturing operations.
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FAQs
RA/8250/M/320 uses standard ISO 15552 mounting conventions and porting (G1) with compatible mounting options such as M/P19446 wide hinge style, UF universal piston rod mount, and a suite of QM mounts. For retrofit projects, verify bore and stroke against existing frames and align the mounting pattern to minimize dynamic loads. The included catalog of switch options (QM/32/5 reed switch) and service kits (QA/8250/00) support straightforward installation and ongoing maintenance.
Key performance specs include a 250 mm bore, 320 mm stroke, and a theoretical thrust of 29436 N. Operating pressure ranges from 1 to 10 bar, with a temperature range of -10 to 80 °C. These parameters enable reliable, repeatable actuation on high-cycle lines, while adjustable cushioning helps control impact and prolongs service life in demanding environments.
Yes. The 250 mm bore delivers substantial force for heavy-duty pushes, while the 320 mm stroke supports extended reach. The rigid construction uses anodised aluminium for the barrel and martensitic stainless steel for the piston rod, giving robustness against wear and corrosion. Magnetic piston and a broad selection of mountings further support stable, long-life operation in challenging factory settings.
The RA/8250/M/320 complies with ISO 15552, ISO 6431, VDMA 24562, and NFE 49-003-1, ensuring interchangeability with other ISO/VDMA actuators and reliable performance across global supply chains. These standards underpin consistent mounting, stroke, and interface dimensions, reducing integration risk in multi-vendor environments.
Maintenance ROI is supported by service kits QA/8250/00 for PRA/802, RA/802, PRA/182, RA/182, or RA/8000, 250 mm assemblies, as well as mounting accessories and a magnetically operated reed switch (QM/32/5). A broad range of mountings (QM and M/P options) enables quick retrofits, minimizing downtime and extending equipment life in expanding or modernized lines.