
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X450-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 450mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
Long-travel jobs inside a compact envelope are where the MAJ32X450-50S earns its slot: a 450 mm stroke that an external stop screw trims by up to 50 mm on site, on a double-acting bore 32 body pushing 402 N at 0.5 MPa. Supply runs 0.15-1.0 MPa (22-145 psi) of air filtered to 40 um, and rod speed spans 30-800 mm/s.
The rolled, riveted stainless barrel with its hard-chrome plated 12 mm rod shrugs off washdown and damp shops far better than painted minis, and the fixed anti-impact pad at each end only decelerates the piston - it is not an adjustable air cushion, which is the MACJ family's job. For sizing, plan on roughly 241 N of usable force (0.6 x 402 N) rather than the full rating.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X450-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 450 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. |
| ×450 | 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.
The rod sweeps rejected cartons off a packaging conveyor over most of its 450 mm travel; the 50 mm window lets operators trim the park position without re-plumbing the circuit.
Pushes swarf 450 mm into a skip bin, using 402 N at 0.5 MPa to clear jammed chips; the stainless barrel laughs at coolant splash along the machine base.
A full-stroke extend nudges totes onto a spur, while a DMSG switch confirms the trimmed stop was reached before the next wave of totes releases.
Compare force before you fix the bore: bore 25 pushes 245 N at 0.5 MPa, this bore 32 does 402 N, and bore 40 reaches 628 N, so step up only if the load truly needs it. For the 450 mm stroke, keep side load off the rod or guide it separately, since a long unsupported rod bends easily.
Mount with the FA flange or LB foot, add an I or Y knuckle on the rod end, and trim the extend stop anywhere within the 50 mm window. The built-in magnet is standard, so CMSG, DMSG or EMSG switches drop on without a special-order piston.
Quick checklist
At 0.5 MPa it pushes 402 N and pulls 346 N; at 0.7 MPa, 563 N push and 484 N pull. Theoretical maximum at 1.0 MPa is 82 kgf. Supply range is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the port on this bore is 1/8".
Yes. The barrel is stainless steel and the 12 mm rod is hard-chrome plated carbon steel, so this model resists mild corrosion far better than painted minis. Aluminium covers are rolled onto the tube for a sealed, slim 450 mm body, and FA flange or LB foot mounts are available.
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.