Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X175-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X175-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 175mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- 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 MAJ25X175-20S
At a 25 mm bore the MAJ25X175-20S delivers 245.3 N pushing at 0.5 MPa, enough to lift about 12 kg vertically once you keep a 2:1 margin (the theoretical figure is 25 kg). The extend stroke is set at 175 mm and can be shortened by up to 20 mm with the external stop screw, no disassembly needed.
The stainless round barrel and hard-chrome plated rod shrug off mild corrosion in damp or food-line air, a real edge over painted minis. Fixed anti-impact bumper pads soften stroke-end contact (deceleration only, not an adjustable air cushion), and the built-in magnet is standard, so CMSG / DMSG / EMSG switches clip straight on.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X175-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X175-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed anti-impact bumper pads |
| 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X175-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -20 | 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 MAJ25X175-20S Is Used
Sachet push-off arm
Ejects filled sachets from a 175 mm conveyor lane; the 20 mm trim absorbs lane-width changes between SKUs.
Sample tray indexing
Advances lab sample trays in a shuttle fixture where the stop screw sets an exact approach position.
Bench press assist
Helps an operator seat rubber grommets into panel holes with about 147 N of usable working force.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X175-20S the Right Cylinder?
Size both ways: bore 20 gives 157.0 N push at 0.5 MPa and bore 32 gives 402.2 N - step up if your load crowds the 245 N class margin. For bench fixtures the LB foot keeps alignment simple; FA flange suits face-mounted tooling. Remember the adjuster is an end stop, not a brake: it sets position but cannot hold the rod still when air is lost.
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 MAJ25X175-20S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa those rise to 343.4 N push and 288.5 N pull. The theoretical maximum at 1.0 MPa is about 50 kgf. Working pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof.
An external stop screw shortens the extend stroke by up to 20 mm from the ordered 175 mm - turn it, run it, done. It is a mechanical end stop for positioning only: it cannot hold the rod against drift if air is lost, and it never lengthens the 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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