
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X60-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 60mm 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.
With a 63 mm bore and 60 mm stroke, the MACJ63X60-40S is the strongest round-body mini cylinder in AirTAC's MA line. It is double-acting with a variable air cushion at both ends and a 40 mm window for trimming the extend stroke on site. At 0.5 MPa the piston pushes 1557.9 N and pulls 1457.4 N; at 0.7 MPa that climbs to 2181 N.
Plan real work around 935 N, which is 60% of the 0.5 MPa push, or about 79 kg of vertical lift with a 2:1 margin. The stainless barrel, riveted aluminium covers and hard-chromed 16 mm rod shrug off washdown and mild corrosion, and every unit ships with a built-in magnet ready for CMSG / DMSG / EMSG switches.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X60-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 60 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 | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 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). |
|---|---|
| 63 | 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.
The 935 N working push, taken as 60% of 1557.9 N at 0.5 MPa, kicks stamped parts clear of the die while the cushion softens each return.
Holds aluminium housings against a hard stop during drilling; the 40 mm trim dials the clamp position in without shimming.
Pushes cartons off a roller conveyor at up to 800 mm/s, with the end cushion preventing the box from bouncing.
Need less force? The 50 mm bore pushes 981.3 N at 0.5 MPa, and there is no bigger MA bore than 63 mm, so a larger series is the next step up. The 40 mm stop screw shortens the extend stroke only and never locks the piston - if air is lost the rod still drifts, so add a check or braking valve where holding matters. Fit the FA flange or LB foot, bolt on I or Y rod knuckles as needed, and guide any side load externally on fast 30-800 mm/s cycles.
Quick checklist
At 0.5 MPa it pushes 1557.9 N and pulls 1457.4 N; at 0.7 MPa the figures reach 2181 N push and 2040.3 N pull. The theoretical maximum at 1.0 MPa is 317.7 kgf. Working pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi).
A stop screw limits the extend stroke anywhere within the 40 mm window, and a variable air cushion at both ends absorbs the last of the travel. It is an end stop, not a brake - the rod can still be back-driven, so do not rely on it to hold a load with air off.
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Covers non-human-caused product damage.
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