
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm 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.
Need a shorter throw than 150 mm without re-ordering? The MACJ50X150-30S carries a 30 mm external adjuster that trims the extend stroke on site, backed by a variable air cushion at both ends so the load settles instead of slamming. At 0.5 MPa the 50 mm bore delivers 981 N of push - enough to lift about 100 kg vertically, or 50 kg with a 2:1 safety margin.
The rolled stainless barrel and hard-chrome 16 mm rod tolerate washdown and humid air far better than painted mini cylinders, and the grease-holding two-way seal keeps lubrication inside. A magnet ships as standard, so a CMSG, DMSG or EMSG switch reads end positions the moment it clips on.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 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 | 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. |
| ×150 | Stroke length in mm. |
| -30 | 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.
Feeds bottles into a rail at up to 800 mm/s; the 30 mm stroke trim lines the pusher up with the lane without shims.
Delivers about 589 N of usable force at 0.5 MPa for staking, snapping and light forming jigs on assembly benches.
Presses strap buckles flat before sealing; the cushioned ends stop the arm rebounding on every cycle.
Compare with the 40 mm bore at 628 N and the 63 mm bore at 1558 N (both at 0.5 MPa) before committing; the 50 mm sits squarely between them for gate and pusher duty. Remember the adjuster is an extend-side end stop, not a load brake - the piston still moves if pressure drops. FA flange and LB foot mountings, plus I and Y rod knuckles, suit most fixtures, and the standard magnet accepts CMSG / DMSG / EMSG switches for end-position sensing.
Quick checklist
At 0.5 MPa it pushes 981.3 N and pulls 880.8 N; at 0.7 MPa that becomes 1373.8 N push and 1233.1 N pull, and the theoretical ceiling is 200.1 kgf at 1.0 MPa. The extend stroke trims within the 30 mm window, cushioning is variable at both ends, speed runs 30-800 mm/s, and supply pressure is 0.15-1.0 MPa (22-145 psi).
The barrel is a rolled stainless-steel tube and the 16 mm rod is hard-chrome plated carbon steel, so mild corrosion, splash and washdown cause far fewer problems than on painted or plain aluminium mini cylinders. Aluminium covers complete the riveted, sealed round body.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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