
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X120-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 120mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
A 120 mm stroke on a 32 mm bore MAJ gives you 402.2 N of push and 345.6 N of pull at 0.5 MPa, with the extend stroke trimmable by up to 50 mm through the external stop screw - set the exact home position on the machine, no disassembly needed. The riveted round body pairs a stainless-steel barrel with a hard-chrome plated rod, so the cylinder shrugs off washdown mist and mild corrosion where painted minis fail.
Every unit ships with a built-in magnet, so CMSG, DMSG or EMSG switches snap on for end-of-stroke sensing without a special piston. Plan the real workload around roughly 241 N (about 60 percent of the 0.5 MPa push rating); the fixed bumper pads soften stroke-end impact, though they are deceleration pads only, not an adjustable cushion.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X120-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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. |
| ×120 | Stroke length in mm. |
| -50 | 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.
Set the capper head to park just above the cap and trim the 120 mm extend stroke by up to 50 mm so the 402 N thrust bottoms each cap to the same depth.
Kick cartons off a conveyor with 402 N of push at 0.5 MPa; the stainless barrel and chrome rod stand up to daily wipe-down in food-adjacent areas.
The built-in magnet accepts CMSG or DMSG switches so the PLC sees both gripped and released states, while the 345.6 N pull force snaps the jaws open again.
At bore 32 you sit between the 25 mm MAJ (245.3 N push at 0.5 MPa) and the 40 mm MAJ (628.3 N); step down when 241 N of usable push covers the job. Mount on an FA flange or LB foot and add I or Y rod knuckles where alignment drifts. The stop screw trims the extend stroke within the ordered 50 mm window - it is a mechanical end stop, so on air loss the rod can still be pushed back and will not lock a load in place.
Quick checklist
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. 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 rating, speed 30-800 mm/s.
An external stop screw shortens the extend stroke anywhere within the ordered 50 mm window, so the extend stop can be set from 70 mm to 120 mm. It is a mechanical end stop, not a mid-stroke lock: on air loss the rod still drifts. Fixed bumper pads soften the end impact; tunable cushioning belongs to the MACJ family.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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