Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X125-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X125-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 125mm 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
- Stroke125 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 MACJ32X125-75S
A 32 mm barrel of stainless steel with rolled aluminium covers, the MACJ32X125-75S is a double-acting mini cylinder whose extend stroke can be trimmed on site by up to 75 mm with the built-in stop screw. Both ends carry a variable air cushion, and the push side delivers 402 N at 0.5 MPa (563 N at 0.7 MPa) - plenty for gates, stoppers and light clamp work at 30-800 mm/s.
The hard-chrome plated 12 mm rod and stainless tube shrug off washdown and humid air far better than painted minis, which is why bottling halls and outdoor cells keep specifying this series. For sizing, plan on roughly 241 N of usable push at 0.5 MPa (60 percent of rating); that is a cylinder that will lift about 20 kg vertically at a 2:1 margin. Every unit ships with the piston magnet already fitted, so CMSG, DMSG or EMSG switches clip on without a special order.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X125-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X125-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 MACJ32X125-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -75 | 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 MACJ32X125-75S Is Used
Stopper gate on a carton conveyor
Raising and lowering a stop blade between cartons: 402 N of push holds the blade against belt friction while the 75 mm window lets engineers dial the gate height per line.
Case kick-off at a packaging infeed
Kicking formed cases sideways into a lane; the dual air cushions tame the impact when the line runs near 800 mm/s.
Eject pin on a small stamping die
Pushing finished brackets clear of the die face; the stainless barrel survives coolant mist that swells painted housings.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X125-75S the Right Cylinder?
Stepping down, a 25 mm bore offers only 245 N push at 0.5 MPa, so margin thins quickly on fast or heavy cycles; stepping up, a 40 mm bore reaches 628 N at 0.5 MPa when the job needs about half again the force. Over a 125 mm span the 12 mm rod should not take lateral loads - hang them on an external guide. Remember the stop screw sets the extend position but is not a mid-stroke lock: with air off, the piston can still be pushed along. Mount on an FA flange or LB foot, add I or Y rod knuckles where the load pivots, feed it through the 1/8" port, and match position sensing to the standard magnet.
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 MACJ32X125-75S FAQ
At 0.5 MPa it pushes 402 N and pulls 346 N; at 0.7 MPa those rise to 563 N push and 484 N pull. The theoretical ceiling at 1.0 MPa is 82 kgf. Working pressure spans 0.15-1.0 MPa (22-145 psi) and speed runs 30-800 mm/s.
Yes. Every MA-series piston carries a built-in magnet as standard, so CMSG, DMSG and EMSG reed or electronic switches mount straight onto the stainless barrel without ordering a special piston. Note the 75 mm adjuster is a mechanical stop for the extend stroke only - it does not hold position if air is lost.
Authorized Export Seller
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.
Related AirTAC MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X125-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.