
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 75mm 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.
Fine tuning is the whole point here: MACJ25X75-10S trims the extend stroke within a narrow 10 mm window, ideal for taking up tolerance stack without shimming the mount. It stays double-acting with a variable cushion at each end, running 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
Underneath, a stainless round barrel is rolled tight against aluminium covers, and the carbon-steel rod wears 20 um of hard chrome - splash, humidity and outdoor duty will not blister it like paint. The 25 mm bore turns 0.5 MPa into 245.3 N push and 206.1 N pull, reaching 343.4 N push at 0.7 MPa and 50 kgf theoretically. Plan around 147 N of usable push, or about 12 kg of vertical lift at a 2:1 factor.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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. |
| ×75 | 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.
Dial the stop back a few millimetres so PCBs park dead-centre in the camera field; the 10 mm window matches fine fixture tolerances.
245.3 N push at 0.5 MPa suits card and badge marking; cushions soften contact so the die does not bounce.
Re-trim docking depth per end-effector without moving the cylinder; dual cushions protect the dock at full cycle speed.
A 16 mm bore manages 100.5 N push at 0.5 MPa; the next size up, 32 mm, reaches 402.2 N - this one covers the middle ground with 245.3 N. The stop screw only shortens extend travel and will not hold a load when air is lost, so add an external stop or locking valve for suspended loads. Mount by FA flange or LB foot, fit I or Y knuckles where the linkage pivots, and the standard-built magnet pairs directly with CMSG, DMSG and EMSG switches. Ports are 1/8" and the rod thread M10x1.25.
Quick checklist
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; 50 kgf theoretical peak at 1.0 MPa. Media is 40 um filtered air, 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
The barrel is stainless steel and the rod is hard-chrome plated carbon steel, so mild corrosion and routine hose-down are handled far better than by painted-steel minis. Ports are 1/8"; the rod thread is M10x1.25.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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