Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 25mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM12×1.25
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S
Short travel and fine end control meet in the MAJ40X25-10S, a double-acting 40 mm mini cylinder whose extend stroke is trimmed by an external stop screw within a 10 mm window. At 0.5 MPa, with the supply band running 0.15-1.0 MPa (22-145 psi), it pushes 628.3 N and pulls 527.8 N at speeds of 30-800 mm/s.
The stainless round barrel and hard-chrome plated rod make it a fit for wet or dusty cells - washdown corners, coolant spray, outdoor fixtures - where aluminium minis pit. Fixed anti-impact bumper pads cushion both stroke ends, though they decelerate only and are not the adjustable cushion of the MAC line. In practice, plan work around 377 N of push at 0.5 MPa, and treat 32 kg as the vertical lift the rod can handle with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 | Fixed anti-impact bumper pads |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S Is Used
Date-code punch on packaging
Drives a short marking head that stamps batch codes; the 10 mm window aligns the strike depth per carton size.
Part-presence kicker in electronics assembly
Nudges unseated components off the pallet nest so the vision station can reject them.
Mold locating pin on plastics tooling
Inserts a hardened locating pin into the tool set; 628.3 N push at 0.5 MPa seats the pin firmly.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S the Right Cylinder?
For a 25 mm stroke this is the heaviest hitter available - MAJ32 at the same stroke manages 402.2 N at 0.5 MPa if the load is lighter. Short strokes mean low side-load risk, but keep the 16 mm rod square to the load anyway. FA flange, LB foot, I and Y knuckles all bolt up (no SDB on the adjustable build). The 10 mm trim sets the extend end mechanically; it does not lock the piston, so position will not hold against back-drive if air is lost. Magnets are standard, letting CMSG, DMSG or EMSG switches report end positions without extra cost.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X25-10S FAQ
At 0.5 MPa: 628.3 N push and 527.8 N pull. At 0.7 MPa: 879.6 N push. At 1.0 MPa the theoretical ceiling is 128.1 kgf. Air supply runs 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi).
No. The MAJ40X25-10S carries fixed anti-impact pads that soften the piston landing at each stroke end. They cannot be tuned. If adjustable cushioning is required, move to the AirTAC MACJ family, which combines cushion screws with the adjustable stroke.
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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