
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-50SH is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 150mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
With a 25 mm bore pushing 245.3 N at 0.5 MPa, the MAJ25X150-50SH covers indexing, clamping and lift duties while an external stop screw shortens the 150 mm extend stroke by up to 50 mm on site. Count on about 147 N of true working force from that rating, and roughly 12 kg of vertical lift when you keep a 2:1 margin. Bumper pads are fixed, so stroke-end impact is damped but not air-cushion adjustable; that extra control lives in the MACJ family.
A stainless barrel plus a 20 um hard-chrome rod means the body tolerates humidity, splash and outdoor exposure better than coated aluminium minis. Position feedback is ready out of the box: the magnet is built in, so CMSG, DMSG and EMSG switches drop straight on. Pressure range 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-50SH |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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.
| 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.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -50 | 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.
On a case packer, the trimmed extend stroke pushes a filled carton square into the sealing station; the stop is set to the lane depth.
A sampling probe driven into vials on a pharma line - the stainless body survives the daily rinse-down that corrodes painted minis.
Parks parts at an exact assembly-pallet position, and an EMSG switch on the standard magnet confirms the seat every cycle.
Compare neighbours before you commit: one bore down, the MAJ20 gives 157 N at 0.5 MPa; one up, the MAJ32 delivers 402.2 N. This 25 mm unit sits at 245.3 N - right for medium clamps and pick-and-place work. Because the stop screw only shortens the extend stroke and never acts as a brake, do not rely on it to park a load against gravity when the air drops.
Order FA flange or LB foot mounting; I and Y knuckles handle the rod-end joints (SDB is not offered on the adjustable series). With 150 mm of travel, watch side load: square up the tooling or add an external guide so the 10 mm rod stays straight. The trailing H in the part number is a variant suffix - confirm the exact option from the datasheet.
Quick checklist
Extend force is 245.3 N at 0.5 MPa and 343.4 N at 0.7 MPa; retract is 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa. The 1.0 MPa theoretical ceiling is 50 kgf. Air ports are 1/8" and the male rod thread is M10x1.25.
No. Every MAJ ships with a magnet built into the piston as standard, so CMSG, DMSG or EMSG switches clip onto the barrel for end-of-stroke signals without a special-order cylinder.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.