
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 350mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
Double-acting with a trimmable extend stroke, this 40 mm bore MAJ drives a 350 mm travel and pushes 628.3 N at 0.5 MPa (879.6 N at 0.7 MPa), while an external stop screw cuts the extend travel anywhere inside a 10 mm window right on the machine. Pull force stands at 527.8 N, and for sizing plan on roughly 377 N of practical working force - the same figure as lifting about 32 kg vertically with a 2:1 margin.
The riveted round body pairs a stainless-steel barrel with a 16 mm hard-chrome plated rod, a combination that shrugs off washdown mist far better than painted minis in damp or food areas. Fixed anti-impact bumper pads ease each stroke end; they decelerate only, since adjustable air cushioning lives in the MACJ family. Note that the trim screw is a mechanical end stop rather than a lock, so the rod drifts if air is lost. Speed runs 30-800 mm/s across 0.15-1.0 MPa (22-145 psi).
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -10 | 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.
Pushes rows of 500 ml PET bottles off a rinser conveyor; 628 N at 0.5 MPa clears a full lane without buckling the lightweight containers.
Opens a powder hopper gate on a seasoning-blending line, the 10 mm window tuned so the gate seals fully without jamming.
Travels 350 mm across a wide carton sealer to press the glue flap, stopping the head precisely at the paper surface.
Compare both directions before ordering: the 32 mm bore below it pushes 402.2 N at 0.5 MPa, while 40 mm is already the largest bore in the MA mini range, so if 628 N is short of your job you move up a series. Because the adjuster only limits extend travel, never count on it to hold a load with the air off. The magnet ships built in, so CMSG, DMSG or EMSG switches snap on for position sensing, and FA flange or LB foot mounts plus I / Y rod knuckles cover most fixturing. At 350 mm of travel, keep side loads off the rod and guide the load externally to protect the chrome surface.
Quick checklist
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa push rises to 879.6 N (pull 738.9 N). Theoretical maximum at 1.0 MPa is 128.1 kgf. Working pressure is 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
The barrel is high-precision stainless steel rolled and riveted onto aluminium-alloy covers with a stainless-steel block, giving a sealed, compact body with no external fasteners along the tube. The 16 mm carbon-steel rod carries 20 um of hard chrome, so mild washdown and outdoor humidity are routine service.
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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