
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X125-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
AirTAC rates this 32 mm mini at 402 N push at 0.5 MPa, and the MAJ32X125-20S turns that into a tunable actuator: the external stop screw shortens the extend stroke by up to 20 mm, so effective travel runs 105 to 125 mm. For vertical work that same force lifts about 20 kg with a 2:1 safety margin, which covers most small fixture and gate loads.
The body is a stainless round tube rolled onto aluminium covers - a compact riveted build rather than a bolted profile - paired with a hard-chrome 12 mm rod that handles splash and outdoor exposure. The magnet comes fitted as standard, so CMSG or DMSG switches report end positions from day one, and fixed bumper pads ease the piston into each end of travel.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X125-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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. |
| ×125 | 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.
Swings a perimeter gate latch shut on a robot cell at 0.5 MPa, with travel trimmed to 105 mm where the guarding frame sits close.
Strokes a small benchtop press for crimping terminals, holding about 241 N of repeatable force against the die.
Raises plastic trays of about 20 kg between an oven conveyor and a cooling conveyor, end positions flagged by a DMSG switch.
If 402 N at 0.5 MPa overshoots your job, the 25 mm MAJ gives 245 N; when you need closer to 628 N, step up to the 40 mm bore. The stop screw fixes where the rod stops when extending; on air loss nothing locks the piston, so a suspended load can still drift and needs an external latch for critical holding. FA flange and LB foot cover fixed mounting, while I and Y knuckles suit pivoting links.
Quick checklist
At 0.5 MPa the MAJ32X125-20S pushes 402.2 N and pulls 345.6 N. Raise supply to 0.7 MPa and those become 563.0 N push and 483.8 N pull; the theoretical ceiling at 1.0 MPa is 82 kgf. Proof pressure is 1.5 MPa (215 psi).
No. The pads are fixed and simply decelerate the piston at stroke end; they cannot be tuned like the air cushions on the MACJ family. Control speed instead with flow valves anywhere in the 30-800 mm/s band.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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