
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X60-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 60mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
Machine builders pick this version when one station must handle several product heights without re-plumbing: the 40 mm window covers extend settings from the full 60 mm down to 20 mm, and cushioning is variable air at each end so cycle speeds can rise without hammering the covers. Push is 245.3 N at 0.5 MPa, double-acting.
The body is a stainless tube rolled onto aluminium covers and a stainless block - a riveted round-body build, not a tie-rod design - with a hard-chrome plated 10 mm rod. Size it on about 147 N of honest working push at 0.5 MPa, enough for a 12 kg vertical lift at a 2:1 margin, while short pressing peaks can borrow the full 245.3 N.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X60-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 60 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| Max standard stroke | Up to 300 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×60 | 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.
Setting rail gaps on a packaging infeed for different carton widths, with the 40 mm window covering each product family.
Staking terminals into plastic connectors at an electronics bench, using the full 245.3 N push at 0.5 MPa for short peaks.
Raising a small part into a robot gripper station, with the cushioned top of stroke keeping the hand-off gentle and repeatable.
This 25 mm bore sits between a 20 mm (157.0 N at 0.5 MPa) and a 32 mm unit (402.2 N at 0.5 MPa): go smaller for light gates, larger once working loads pass roughly 240 N. The trim screw does not lock position - on air loss the rod drifts - so use a 3-position valve when holding matters. Bolt it down with an FA flange or LB foot; the built-in magnet pairs with CMSG, DMSG and EMSG switches straight from the box. Port size here is 1/8" and the M10x1.25 rod thread takes standard I or Y knuckles.
Quick checklist
At 0.5 MPa: 245.3 N push and 206.1 N pull. At 0.7 MPa: 343.4 N push and 288.5 N pull. Theoretical maximum is 50.0 kgf at 1.0 MPa. The cylinder runs on 0.15-1.0 MPa (22-145 psi), tolerates -20 to +70 C, and cycles at 30-800 mm/s.
The riveted stainless barrel with a hard-chrome plated rod handles washdown, coolant mist and outdoor damp far better than painted steel minis, and the round shell fits tight clamp brackets. It is an AirTAC MA-series design, not a tie-rod or extruded-profile format, and the built-in magnet accepts CMSG / DMSG / EMSG switches as standard.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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