Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X90-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X90-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 90mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke90 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 MAJ32X90-20S
With 402 N forward and 345.6 N of return force at 0.5 MPa, this 32 mm bore covers mid-duty push, clamp and eject jobs without a bulky body. The extend stroke can be shortened by up to 20 mm from its 90 mm nominal travel using the external stop screw, and the double-acting design drives the rod both ways on air at 0.15-1.0 MPa (22-145 psi).
Build quality comes from a rolled, riveted stainless barrel paired with a 20 um hard-chrome rod - a combination that shrugs off washdown where painted minis blister. Bumper pads are fixed at both stroke ends to take the edge off impact. A magnet is part of the standard build, ready for CMSG, DMSG or EMSG switches. In lift terms the 402 N push equates to about 41 kg of theoretical vertical capacity, so plan on roughly 20 kg with a 2:1 safety factor.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X90-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X90-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 90 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 MAJ32X90-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 MAJ32X90-20S Is Used
Indexing stopper on a roller conveyor
Pops up to arrest boxes between stations; the 90 mm stroke clears the product stream and the -20 trim sets the exact stopping height.
Reagent tray ejector in a lab autosampler
Pushes sample trays to a pickup point, with 345.6 N of pull force returning the rod smoothly inside a compact instrument frame.
Bearing press for small motor assemblies
Seats small ball bearings into end bells at the bench; halving the 402 N push to about 20 kg of vertical lift matches light press fits safely.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X90-20S the Right Cylinder?
Sizing both ways: the 25 mm bore tops out at 245.3 N push at 0.5 MPa and the 40 mm bore reaches 628.3 N, so choose 32 mm when a job needs roughly 240-400 N of working push. Keep in mind the adjuster only shortens the extend stroke and simply stalls the piston at the stop - it does not lock the rod against back-driving when air is lost. Pick FA flange or LB foot mounting, add I or Y rod knuckles if the tooling needs a linkage, and count on the standard magnet for switch position feedback.
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 MAJ32X90-20S FAQ
At 0.5 MPa: 402.2 N push and 345.6 N pull. At 0.7 MPa: 563.0 N push and 483.8 N pull, peaking at a theoretical 82 kgf at 1.0 MPa. The 12 mm rod carries M10x1.25 male thread, air ports are 1/8", and speed runs 30-800 mm/s across a 0.15-1.0 MPa (22-145 psi) supply.
It specifies a 20 mm adjustable window: an external stop screw lets you shorten the extend stroke anywhere within 20 mm of the full 90 mm without changing hardware. The stop is a position limit only - it is not an air cushion (that is the MACJ family) and not a load lock if pressure drops.
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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