
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X150-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 150mm 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.
Top of the MA force class, the MACJ63X150-20S pairs a 150 mm stroke with a 20 mm extend-stroke trim and cushioning at both ends. It is double-acting through and through: 1557.9 N of push and 1457.4 N of pull at 0.5 MPa, rising to 2181.0 N of push at 0.7 MPa. The 16 mm rod is hard-chrome plated carbon steel; air enters through 1/4" ports.
Construction is the MA signature: a precision stainless barrel with aluminium covers rolled on, so there are no external fasteners to corrode in washdown areas and no paint to flake in damp corners. In practice it shrugs off the rinse-down that ruins painted mini cylinders. Vertically it will lift about 79 kg with a 2:1 margin (158 kgf raw at 0.5 MPa), which makes part-weight matching straightforward. Speed 30-800 mm/s; pressure 0.15-1.0 MPa (22-145 psi).
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X150-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 150 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. |
| ×150 | Stroke length in mm. |
| -20 | 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.
Pushes heavy guide gates between bottle formats; the 20 mm trim absorbs format-to-format differences and the end cushion stops the gate without cracking the guide rail.
Clamps steel brackets on an automotive jig; 935 N of working force at 0.5 MPa holds the joint line while the welder runs, and the trim sets exact clamp depth per fixture.
Drives the ram plate that tamps carton trim into a baler chute; the 63 mm bore's 1557.9 N push at 0.5 MPa cycles all shift without hammering the covers thanks to the cushion.
Drop to the 50 mm bore (981.3 N at 0.5 MPa) if the load is light - you will save compressed air; there is no step up, since 63 mm is the largest MA bore. The 20 mm stop screw shortens the extend stroke within the ordered window; it is a position stop only and will not lock the piston against drift if air pressure is lost. FA flange and LB foot mounting, plus I and Y knuckles for pivoting loads, cover most set-ups, and with 150 mm of travel guide any side load externally to protect the rod.
Quick checklist
Push at 0.5 MPa is 1557.9 N and pull is 1457.4 N. At 0.7 MPa: 2181.0 N push, 2040.3 N pull. Theoretical maximum 317.7 kgf at 1.0 MPa. Operating range 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, cushion adjustable at both ends.
That is where the MA build earns its keep: the stainless tube and hard-chrome 16 mm rod resist the mild corrosion and chemical rinse that blister painted or plain aluminium minis, making the cylinder a solid pick for food, beverage and outdoor locations.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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