Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-30S 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 MACJ25X225-30S
A 30 mm trim window gives the MACJ25X225-30S generous on-site tuning: set the stop screw anywhere from 225 mm down to 195 mm of extend travel once the machine is built. Air on both faces makes it double-acting, and variable cushions at each end let you run 30-800 mm/s without hammering the covers under a 245 N push at 0.5 MPa.
Construction is the classic MA recipe - a stainless round barrel rolled onto aluminium covers, with a hard-chrome plated carbon-steel rod that tolerates humid or lightly washed environments. Plan real work around 147 N at 0.5 MPa rather than the raw rating, which equals about 12 kg of vertical lift at a 2:1 margin. The piston magnet ships standard, ready for DMSG switching.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-30S |
|---|---|
| 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 MACJ25X225-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×225 | 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.
Where the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-30S Is Used
Bottling gate indexer
Gates bottles between lanes; the 30 mm window absorbs conveyor repositioning without swapping cylinders.
Bench staking press
Drives a light stake or rivet with 343 N available at 0.7 MPa, cushioned so the die never slams bottom.
Glue head traverser
Positions a dispensing nozzle across a 200 mm panel; DMSG switches flag end-of-travel for the PLC.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X225-30S the Right Cylinder?
Compare in force: the 20 mm bore offers 157 N at 0.5 MPa and the 32 mm bore 402 N, so this 25 mm frame at 245 N push / 206 N pull is the mid choice. If the duty is long horizontal sliding, friction may eat into that margin - check against the actual load.
The adjuster sets only the trimmed end of the extend stroke; it is not a brake and the rod moves if pressure drops. Mount with FA flange or LB foot, add I or Y knuckles to the M10x1.25 rod end, and remember the fixed-stroke MAC or double-rod MACD variants exist if trimming is not needed.
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 MACJ25X225-30S FAQ
At 0.5 MPa: 245.3 N push, 206.1 N pull. At 0.7 MPa: 343.4 N push, 288.5 N pull. Maximum theoretical force for the 25 mm bore is 50 kgf at 1.0 MPa. The rod is 10 mm with M10x1.25 thread, air ports are 1/8", and the cylinder takes FA flange or LB foot mounting. Operating pressure is 0.15-1.0 MPa (22-145 psi).
The stainless barrel with rolled covers and the hard-chrome plated rod resist the mild corrosion that quickly ruins painted-steel minis near coolant, washdown or outdoors. Add the built-in magnet with CMSG, DMSG or EMSG sensors and you get position feedback from the same sealed body.
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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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