
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X350-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm 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.
A 40 mm tuning band on the extend stroke gives the MAJ32X350-40S the widest on-site flexibility in this 350 mm family. Its 32 mm double-acting bore pushes 402 N and pulls 346 N at 0.5 MPa, climbs to 563 N push at 0.7 MPa, and tops out at an 82 kgf theoretical rating; treated conservatively, about 241 N of the 0.5 MPa push should be budgeted for the actual workload.
Inside the riveted body sits a stainless-steel barrel with a hard-chrome plated carbon-steel rod, a pairing that shrugs off condensation and light chemical splash in food, packaging or outdoor machinery. The 350 mm stroke is a custom length - standard 32 mm production stops at 300 mm - and the trim stop is purely an extend-side end stop, never a brake against a falling load. Sensors attach instantly thanks to the standard-fit magnet.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X350-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 350 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. |
| ×350 | Stroke length in mm. |
| -40 | 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.
Repositions a guide rail set between bottle formats; the 40 mm window absorbs multiple container sizes without swapping cylinders at changeover.
Pulls a clamp hook over a mixing-bowl lid every cycle; hard-chrome plating and the stainless barrel stand up to daily hose-down in the bakery.
Advances racks one pitch per cycle into a furnace queue; the bumper pad takes the sting out of every stroke end at high cycle rates.
This bore sits between the 25 mm size (245 N push at 0.5 MPa) and the 40 mm size (628 N), so verify your worst-case load before ordering. For clamps and pushers, size the cylinder so normal duty stays near or below 241 N. The 40 mm window means one cylinder can serve several stroke recipes on the same machine. FA flange and LB foot bases, plus I and Y rod knuckles, cover most fixings; with 350 mm of travel, add external guides so side loads never bend the 12 mm rod, and fit CMSG, DMSG or EMSG switches freely - the magnet is standard.
Quick checklist
The 32 mm bore delivers 402 N push and 346 N pull at 0.5 MPa, 563 N push and 484 N pull at 0.7 MPa, and an 82 kgf theoretical maximum at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, and the extend stroke trims within the ordered 40 mm window via the external stop screw.
Grease storage in the two-way piston seal keeps friction low over long runs, and the fixed bumper pads simply decelerate the stroke ends - no cushion adjustment is needed or possible (that is MACJ territory). Check rod finish periodically; the hard-chrome layer is 20 um and resists corrosion, and the built-in magnet needs nothing at all.
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Covers non-human-caused product damage.
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