
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X75-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 75mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
A compact double-acting round-body mini cylinder with a 20 mm extend-stroke trim window: turn the external stop screw and the 75 mm stroke lands anywhere from 55 to 75 mm without swapping hardware. At bore 32 it pushes 402 N and pulls 346 N at 0.5 MPa, rising to 563 N at 0.7 MPa. Derating to 60 percent of rating leaves roughly 241 N of usable work at 0.5 MPa, so seals and linkages keep their margin.
The stainless barrel and hard-chrome plated carbon-steel rod shrug off washdown and damp air far better than painted mini cylinders, while the riveted aluminium covers keep the envelope tight. Fixed anti-impact pads soften both stroke ends - these are bumpers only, not adjustable air cushions like the MAC family. A magnet comes built in, so CMSG, DMSG or EMSG switches snap on straight from the box.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X75-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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.
| 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.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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.
A 402 N push drives a locking pin into a rotary indexing table on a small assembly line, with the 20 mm trim letting the pin seat at a repeatable depth.
On a case packer, the cylinder folds the leading flap of a shipping carton; the stainless barrel copes with corrugate dust and daily wipe-downs.
A benchtop sample slide on an analytical instrument advances 75 mm per cycle, switched mid-travel by a DMSG reed switch clipped to the barrel.
Sized between the 25 mm bore (245 N push at 0.5 MPa) and the 40 mm bore (628 N), this 32 mm bore covers mid-range clamping and lifting. The stop screw is a mechanical end stop for extension only - if air leaks away the rod will drift, so it is not a mid-stroke lock or load brake. FA flange and LB foot mountings, plus I and Y rod knuckles, fit most jig plates; the magnet is already in the piston, and non-standard strokes are made to order.
Quick checklist
At 0.5 MPa it pushes 402 N and pulls 346 N; at 0.7 MPa those figures rise to 563 N and 484 N. The theoretical maximum at 1.0 MPa is 82 kgf. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, and speed runs 30-800 mm/s on air filtered to 40 um.
An external stop screw shortens the extend stroke anywhere inside the ordered 20 mm window, so the 75 mm stroke can be set from 55 mm upward on site. It is a mechanical end stop, not a load-holding brake: on air loss the rod still drifts. Fixed bumper pads cushion the stroke ends.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.