Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 70mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S
The MAJ32X70-20S is a double-acting round-body mini cylinder with a 20 mm adjustable extend window: an external stop screw lets you trim the 70 mm stroke down on site without swapping cylinders. At 0.5 MPa it delivers 402 N of push and 346 N of pull, and at 0.7 MPa push rises to 563 N, giving this 32 mm bore enough muscle for clamping and lifting on compact machinery.
The riveted stainless barrel and hard-chrome 12 mm rod shrug off washdown and damp shop air, a real edge over painted mini bodies in food or outdoor cells. A fixed anti-impact pad softens stroke-end landings (deceleration only, not an adjustable cushion like the MAC family). Every unit ships with the magnet built in, so CMSG / DMSG / EMSG switches mount straight on; plan real work around roughly 241 N at 0.5 MPa, and the cylinder will lift about 20 kg vertically with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S Is Used
Bench-top press jig
Stops a small pneumatic arbor press with a 20 mm shorter extend travel so rivet depth stays repeatable across aluminium terminals.
Packaging gate diverter
Pushes a sorting flap on a bakery line, where 346 N of pull at 0.5 MPa resets the gate against product backpressure.
Lab fixture lift
Raises a 15 kg test cell lid vertically with margin to spare, in humid washdown-adjacent conditions the stainless barrel tolerates.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S the Right Cylinder?
Size it between the 25 mm bore (245 N push at 0.5 MPa) and the 40 mm bore (628 N push at 0.5 MPa) depending on grip or lift demand. Ports are 1/8" on this bore with a male M10x1.25 rod thread. The stop screw trims only the extend stroke and acts as a mechanical end stop, not a mid-stroke lock, so the rod can still drift if air is lost. FA flange or LB foot mounts pair with I / Y rod knuckles, and the standard-built-in magnet makes CMSG / DMSG / EMSG switching a plug-on job.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-20S FAQ
At 0.5 MPa the 32 mm bore gives 402 N push and 346 N pull; at 0.7 MPa that rises to 563 N push and 484 N pull. The theoretical maximum at 1.0 MPa is 82 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof limit, and speed runs 30-800 mm/s.
Yes - the barrel is stainless steel and the 12 mm rod is hard-chrome plated, so it shrugs off condensation and mild washdown that rust painted mini cylinders. Mounting is via FA flange or LB foot, I / Y rod knuckles fit the rod end, ports are 1/8" with an M10x1.25 male thread, and the built-in magnet accepts CMSG / DMSG / EMSG switches as standard.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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