
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X130-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 130mm 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.
Round stainless barrel, 981 N of push at 0.5 MPa, and a stop screw that shortens the 130 mm extend stroke across a 50 mm band: the MACJ50X130-50S is the plain-spoken workhorse of the adjustable MACJ range. A variable air cushion at each end lets you raise line speed toward 800 mm/s without hammering the covers.
For vertical work, count on roughly 50 kg of lifting capacity once a 2:1 margin is applied to the 100 kg theoretical thrust at 0.5 MPa. The magnet is fitted as standard equipment, pairing with CMSG, DMSG and EMSG switches for end-of-stroke detection.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X130-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 130 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. |
| ×130 | Stroke length in mm. |
| -50 | 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.
Stainless barrel and chrome rod survive daily caustic rinse; the 50 mm window adapts to different tub heights.
About 50 kg of usable vertical force holds stacked totes; the magnet confirms the clamp is fully home.
Rain and dust meet a riveted stainless body; cushions settle each 130 mm gate move quietly.
Compared with neighbours: the 40 mm MACJ pushes 628 N at 0.5 MPa and the 63 mm reaches 1558 N, so this 50 mm bore is the balance point for loads near 589 N of continuous effort. FA flange or LB foot mounting bolts it down; I and Y knuckles suit swinging loads, and the piston magnet pairs with DMSG or EMSG sensors out of the box. Note that the -50 stop is an end-position limiter only, not a holding brake - on air failure the rod moves freely, so use a valve or external lock where the load must stay put. Across 130 mm of stroke, keep the 16 mm rod clear of side loads or add external guides.
Quick checklist
Push 981.3 N, pull 880.8 N at 0.5 MPa; push 1373.8 N, pull 1233.1 N at 0.7 MPa; 200.1 kgf theoretical max at 1.0 MPa. 50 mm bore, 16 mm rod with M14x1.5 male thread, 1/4" port, adjustable extend window 50 mm, speed 30-800 mm/s, temperature -20 to +70 C.
Every MACJ ships with the piston magnet already installed, so CMSG, DMSG and EMSG magnetic switches mount on the barrel at any time - no special-order piston or later retrofit needed. Switch brackets clamp onto the stainless barrel without drilling.
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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