Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 250mm stroke, 1/8" 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.
- BoreØ32 mm
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S
A stainless round-body mini cylinder built for long-reach work, the MACJ32X250-50S runs double-acting with a variable air cushion at both ends and a 50 mm adjustable extend window. The stop screw shortens the extend stroke on site anywhere inside that 50 mm range, so one cylinder covers several fixture positions. At 0.5 MPa it pushes 402.2 N and pulls 345.6 N, with pressure from 0.15-1.0 MPa (22-145 psi) and speeds of 30-800 mm/s.
The riveted stainless barrel and hard-chrome plated 12 mm rod shrug off washdown and humid air far better than painted-steel minis, and the magnet is built in as standard, so CMSG, DMSG or EMSG switches clip on without a special-order piston. For sizing, treat roughly 241 N as the practical working force at 0.5 MPa - about two thirds of the rating - which lifts around 20 kg vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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.
Where the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S Is Used
Carton push-off on a packaging line
250 mm of reach side-pushes cartons off a belt; the 50 mm trim window lets one cylinder serve belts of slightly different widths.
Stamping die parts ejector
402 N at 0.5 MPa is enough to kick small stamped parts clear of the die, and the cushion soaks up the return impact.
Sliding guard gate actuator
Opens and closes a machine guard door; end cushions keep the latch from slamming, while the built-in magnet drives a door-open switch.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S the Right Cylinder?
This 32 mm bore pushes 402.2 N at 0.5 MPa. If your load needs under 245.3 N, a bore 25 MACJ is cheaper; above about 628.3 N, step up to bore 40. On a 250 mm stroke, guide the load externally or add an I or Y rod knuckle - side load on an unsupported rod bends it and shortens seal life. The stroke adjuster is a mechanical end stop only; it will not hold a load if air pressure drops, so use a locking valve where holding matters. Mount on the FA flange or LB foot to suit your frame.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X250-50S FAQ
At 0.5 MPa it pushes 402.2 N and pulls 345.6 N. At 0.7 MPa push rises to 563.0 N, and the theoretical maximum at 1.0 MPa is 82 kgf. Ports are 1/8 inch, the rod is 12 mm with an M10x1.25 male thread, and operating pressure spans 0.15-1.0 MPa (22-145 psi).
A stop screw shortens the extend stroke anywhere inside the ordered 50 mm window - it never lengthens the stroke past 250 mm. Variable air cushion at both ends absorbs the remaining impact. Keep in mind the stop is not a brake: with air lost, the piston can still drift.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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