Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 225mm 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.
- BoreØ25 mm
- Stroke225 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 MACJ25X225-75S
With a 75 mm trim window riding on a 225 mm extend stroke, the MACJ25X225-75S lets you dial the stop screw to the exact reach each product needs, while the variable air cushion at both ends soaks up the shock of faster cycles. This double-acting bore 25 unit pushes 245 N and pulls 206 N at 0.5 MPa, climbing to 343 N and 288 N at 0.7 MPa.
AirTAC rivets the aluminium-alloy covers and a stainless-steel block onto the high-precision stainless barrel, and the 10 mm carbon-steel rod carries a 20 um hard-chrome plating that takes damp or washdown-prone spots in stride. The magnet is built in as standard, so CMSG, DMSG or EMSG switches mount straight onto the barrel with no special-order piston. In practice, plan on roughly 147 N of usable force at 0.5 MPa - the equivalent of lifting about 12.5 kg vertically once you keep a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 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 300 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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 MACJ25X225-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×225 | 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 MACJ25X225-75S Is Used
Variable-height carton push-off
On a cartoning line where SKUs range from 60 to 200 mm tall, set the stop screw once per format instead of swapping cylinders - the 75 mm window covers the spread and the 245 N push at 0.5 MPa clears each carton cleanly.
Coolant-mist slide gate
A sliding guard on a CNC lathe sits in constant coolant mist; the stainless barrel and hard-chrome plated rod outlast painted minis there, and the standard magnet feeds a DMSG switch to prove the gate is closed before cycle start.
Washdown tray diverter
In a dairy end-of-line, the cylinder diverts trays between two conveyors; the tuned cushions stop the roughly 12 kg-class tray slam even at 800 mm/s, and LB foot brackets bolt straight to the machine frame.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-75S the Right Cylinder?
Step down to the MA bore 20 if 157 N of push at 0.5 MPa covers the job, or step up to the bore 32 for 402 N. At 225 mm of travel, keep side loads off the 10 mm rod - guide the load externally or the rod will bend over the long span. The stop screw shortens the extend stroke only and acts as a mechanical end stop, not a brake: if air is lost, the piston still drifts. Mount with an FA flange or LB foot, add an I or Y rod knuckle where the load pivots, and clip a CMSG or DMSG switch onto the magnet-equipped barrel. Ports are 1/8" and the male rod thread is M10x1.25.
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 MACJ25X225-75S FAQ
Bore 25 pushes 245 N and pulls 206 N at 0.5 MPa; at 0.7 MPa it reaches 343 N push and 288 N pull. The theoretical maximum is 50 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speed runs 30-800 mm/s.
The stop screw is a mechanical end stop that shortens the extend stroke anywhere inside the 75 mm window - it cannot lengthen travel past the ordered 225 mm, and it is not a mid-stroke lock, so on air loss the piston still drifts. Both ends carry a variable air cushion you can tune independently with the adjusting screws.
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 MACJ25X225-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.