
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-30S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 70mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
With a 30 mm tuning window, the MAJ32X70-30S lets a fixture builder dial the 70 mm extend stroke down to wherever the part actually sits, using only a stop screw on the cover. This 32 mm double-acting bore produces 402 N of push and 346 N of pull at 0.5 MPa, climbing to 563 N push when you run 0.7 MPa.
The round body is rolled from a stainless tube with aluminium covers, and the 12 mm rod carries a hard-chrome plating that resists rust in humid plants. Fixed bumper pads take the sting out of end-of-stroke contact, though they decelerate only - true adjustable cushioning lives in the MACJ series. The magnet is included as standard, so CMSG / DMSG / EMSG sensors snap on for end-position checks, and sizing for real work means allowing about 241 N of usable push at 0.5 MPa, enough to lift roughly 20 kg vertically with a 2:1 margin.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-30S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 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. |
| ×70 | Stroke length in mm. |
| -30 | 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.
Deploys a 12 mm pin that halts pallets on an automotive conveyor at a repeatable position set anywhere inside the 30 mm window.
Clamps steel brackets on a welding cell jig with 402 N at 0.5 MPa, release guaranteed by the 346 N pull stroke.
Pushes filled cartons off a checkweigher belt, landing adjusted to a 30 mm shorter stroke so box corners stay crisp.
Between the 25 mm bore (245 N at 0.5 MPa) and the 40 mm bore (628 N at 0.5 MPa), this 32 mm model sits in the mid-thrust band for medium clamps and lifts. The stop is a mechanical extend limit, not a brake - under air loss the rod still moves, so add a valve or external stop where holding matters. Mount with FA flange or LB foot; I and Y knuckles suit rod-side linkages. Ports are 1/8", rod thread M10x1.25, and the standard magnet accepts CMSG / DMSG / EMSG switches without a special-order piston.
Quick checklist
Rated at 402 N push / 346 N pull on 0.5 MPa air, and 563 N push / 484 N pull at 0.7 MPa, with a 82 kgf theoretical ceiling at 1.0 MPa. Supply range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and usable speed spans 30-800 mm/s.
No - every MA-series body ships with a magnet already in the piston, so CMSG, DMSG and EMSG reed or solid-state switches clip onto the 32 mm barrel out of the box. The stainless barrel and hard-chrome 12 mm rod also let this cylinder shrug off washdown, while fixed anti-impact pads cushion each stroke end without needing an air-cushion circuit.
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Covers non-human-caused product damage.
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