
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-100S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 225mm stroke, 1/4" 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.
Real muscle in a round stainless body: the MACJ50X225-100S pushes 981.3 N at 0.5 MPa and 1373.8 N at 0.7 MPa while letting you trim the extend stroke anywhere within a generous 100 mm window using its external stop screw. Double-acting with a variable air cushion at both ends, it soaks up end-of-stroke shock so you can run 30-800 mm/s over the 225 mm travel without hammering the aluminium covers. Working pressure is 0.15-1.0 MPa (22-145 psi), with up to 200.1 kgf of theoretical force on tap.
Roughly 100 kgf of vertical lift sits in this bore on paper, so halving for a 2:1 margin you can lift about 50 kg vertically and still keep reserve. The riveted stainless barrel shrugs off mild corrosion and washdown, a genuine edge over painted-steel minis in damp food or outdoor spots, and the magnet is built in as standard so CMSG / DMSG / EMSG switches drop straight on.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-100S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 225 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 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 | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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). |
|---|---|
| 50 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -100 | 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.
Knocks off-weight cans off a washdown beverage conveyor; the stainless barrel shrugs off caustic rinse while 981 N at 0.5 MPa clears a full lane.
On a flour hopper the 100 mm window lets maintenance set the discharge opening anywhere from 125 to 225 mm without re-piping the air side.
Diverts cartons at a dock conveyor with 1373.8 N available at 0.7 MPa, cushioned at both ends so boxes do not jump the rail.
Need less muscle? The 40 mm bore pushes 628.3 N at 0.5 MPa; need more, step to 63 mm for 1557.9 N. Ports on this bore are 1/4 in. and the male rod thread is M14x1.5. Mount with the FA flange or LB foot, or add an I or Y rod knuckle for swivel joints. The stop screw is a mechanical end stop for the extend stroke only: on air loss the piston can still drift, so use a locking valve for true holding. Over a 225 mm stroke keep side loads off the rod or guide the load externally to avoid bending.
Quick checklist
At 0.5 MPa it pushes 981.3 N and pulls 880.8 N; at 0.7 MPa that rises to 1373.8 N push and 1233.1 N pull, with a theoretical maximum of 200.1 kgf at 1.0 MPa. The bore is 50 mm, stroke 225 mm with a 100 mm adjustable window on extend, double-acting with a variable air cushion at both ends, speed 30-800 mm/s, port 1/4 in., rod thread M14x1.5.
No. Every MA-series cylinder ships with the magnet built in, so CMSG, DMSG and EMSG reed or electronic switches mount directly on the 50 mm barrel and read end-of-stroke positions without a special piston.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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