Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X40-10S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X40-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 MACJ25X40-10S
Short-trim precision for tight panels: the MACJ25X40-10S gives a 40 mm base stroke you can shorten by up to 10 mm on site, double-acting with a variable cushion at each end to soften landings. Its riveted stainless barrel and hard-chrome steel rod take humidity and light washdown in stride - no paint to chip or flake.
Force class at 0.5 MPa: 245.3 N extend, 206.1 N retract; at 0.7 MPa push climbs to 343.4 N. Converted for lifting, the rod can raise about 25 kg vertically at 0.5 MPa, or around 12.5 kg if you keep a 2:1 margin. The piston magnet is fitted as standard, so CMSG / DMSG / EMSG switches drop on for end-of-stroke signalling.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X40-10S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X40-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MACJ25X40-10S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -10 | 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 MACJ25X40-10S Is Used
Feed hopper lift gate
Raises a small hopper gate 40 mm to release granules into a blender; the 10 mm trim lets the operator fine-tune gate opening without shims or re-drilling.
Bench ejector for stamped parts
Kicks finished washers clear of a small press die, sized with the roughly 25 kg vertical-lift capability as a practical guide for part weight.
Indexed pallet presenter
Lifts pallets up to a reading height on an assembly line; a CMSG switch on the standard magnet confirms the up-position every single cycle.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X40-10S the Right Cylinder?
Compare the 20 mm bore MAJ at 157.0 N push with the 32 mm MACJ at 402.2 N, both at 0.5 MPa, to see where this 25 mm unit belongs. The trim screw fixes the extend endpoint mechanically; it will not hold a load in place if supply air drops. Choose FA flange or LB foot mounting, order I or Y knuckles for the M10x1.25 rod, and wire sensors straight 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 MACJ25X40-10S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa the figures are 343.4 N push and 288.5 N pull, with a 50 kgf theoretical peak at 1.0 MPa. The 40 mm extend stroke trims by up to 10 mm, cushioning is variable at both ends, and the working band is 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
The riveted stainless tube plus hard-chrome rod shrug off condensation, coolant mist and periodic washdown that blister painted mini cylinders. Add the variable air cushions and you can run the eject stroke fast yet land gently, stretching seal life on repetitive 40 mm cycles.
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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