Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X160-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X160-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 160mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke160 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 MAJ25X160-40S
Stroke setting happens at the machine, not at order time: an external screw trims this MAJ25X160-40S extend stroke across a 40 mm window while retraction runs its full 160 mm under air power. At 0.5 MPa expect 245.3 N pushing and 206.1 N pulling; at 0.7 MPa the push climbs to 343.4 N.
Construction is the classic MA recipe - a riveted stainless round body, aluminium covers and a hard-chrome carbon-steel rod that resists scoring in dusty woodworking or grain-handling air. Because the stop screw is a mechanical end stop rather than a mid-stroke lock, the piston can drift if air pressure is lost, so clamp or support held loads separately. For sizing, treat about 147 N as practical output at 0.5 MPa and the actuator will ride through real-world pressure swings without stalling.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X160-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X160-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 160 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 MAJ25X160-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -40 | 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 MAJ25X160-40S Is Used
Eject Pin on an Injection Mold Bench
The rod drives an eject pin that pushes cooled nylon caps from a pilot mold cavity; the 40 mm window lets molders set eject depth per cap height without swapping cylinders.
Dock Gate Lift at a Parcel Sorter
Rated near 25 kgf at 0.5 MPa, the bore raises a lightweight steel gate of about 12 kg with margin to spare; the stainless barrel shrugs off road dust and damp dock air.
Punch Assist on a Small Stamping Fixture
A job shop uses the cylinder to pre-clamp sheet stock before a manual punch; 343.4 N at 0.7 MPa locks the sheet flat, and the LB foot anchors it to the bench.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X160-40S the Right Cylinder?
Sizing check: a 20 mm MAJ yields 157.0 N push at 0.5 MPa for gentler tasks, while the 32 mm version's 402.2 N suits heavier presses - the 25 mm bore and its 245.3 N fit this mid band. Choose FA flange or LB foot mounting; I and Y knuckles handle rod-end articulation, and the adjustable series omits SDB.
Remember the stop screw fixes extend position only and will not arrest a drifting rod on air loss. Across 160 mm of stroke, keep the load guided so the 10 mm rod sees negligible side force.
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 MAJ25X160-40S FAQ
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; theoretical maximum 50 kgf at 1.0 MPa. Pressure runs 0.15-1.0 MPa (22-145 psi), proof is 1.5 MPa (215 psi), speed 30-800 mm/s.
No - it is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the piston can drift on pressure loss. Mounting choices are the FA flange or LB foot, with I and Y knuckles available at the rod end.
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.
Request a Quote for Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X160-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.