Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X250-100S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X250-100S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm 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.
- BoreØ25 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 MACJ25X250-100S
A riveted round-body mini cylinder from AirTAC's MA series, the MACJ25X250-100S runs double-acting on air at 0.15-1.0 MPa (22-145 psi) and carries a 100 mm adjustable window, so the 250 mm extend stroke can be trimmed on site anywhere down to 150 mm. A variable air cushion at both ends soaks up end-of-stroke shock across the 30-800 mm/s speed band.
At 0.5 MPa this bore pushes 245 N and pulls 206 N; raising supply to 0.7 MPa takes those to 343 N and 288 N, with a theoretical ceiling of 50 kgf. The stainless barrel and hard-chrome plated rod handle damp or washdown-prone spots that corrode painted mini cylinders, and the built-in magnet accepts CMSG, DMSG or EMSG switches without a special piston. Plan real work around 147 N per extend stroke rather than the full rating, which covers lifting roughly 12 kg vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X250-100S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X250-100S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 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 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 MACJ25X250-100S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -100 | 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 MACJ25X250-100S Is Used
Multi-part kitting pusher
Pushes groups of fittings into blister trays on a 250 mm indexing table, with the 100 mm window letting one cylinder serve several tray pitches.
Carton stop and positioner
Stops and squares small cartons at a packing station; the dual air cushion keeps 250 mm advances quiet even at 800 mm/s.
Sample slide handler
Slides microscope sample holders between stations in a lab autoloader, where the stainless barrel resists frequent cleaning chemicals.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X250-100S the Right Cylinder?
Need less force? The bore 20 MACJ delivers 157 N push at 0.5 MPa; step up to bore 32 for 402 N. With 250 mm of travel, keep side loads low and guide the workpiece externally, since the 10 mm rod is not meant to take bending. Mounting is FA flange or LB foot, with I and Y rod knuckles available, and the stop screw is a stroke limit only, not a load-holding brake - on air loss the piston still drifts.
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 MACJ25X250-100S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa, 343.4 N push and 288.5 N pull, with a theoretical maximum of 50 kgf at 1.0 MPa. The extend stroke is trimmable from 250 mm down to 150 mm via the 100 mm adjust window, with a variable cushion at both ends. Air port is 1/8-inch; operating range 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Every MACJ ships with a magnet already in the piston, so CMSG, DMSG and EMSG switches clip straight onto the stainless barrel - no special-order piston needed. The adjuster is a mechanical stop that shortens the extend stroke only; it never lengthens travel and it does not lock the rod in place when 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.
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