Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X150-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X150-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke150 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 MAJ40X150-40S
Double-acting with a trimmable extend stroke, the MAJ40X150-40S delivers 628.3 N of push and 527.8 N of pull at 0.5 MPa, rising to 879.6 N push and 738.9 N pull at 0.7 MPa with a theoretical peak of 128.1 kgf. An external stop screw sets the extend stroke anywhere inside the ordered 40 mm window, so one 150 mm body covers several clamp positions. It runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s, and each end of travel lands on a fixed anti-impact pad.
The stainless round barrel with its hard-chrome plated 16 mm rod shrugs off washdown and damp shop air far better than painted-steel minis. Size the real job at roughly 377 N of usable push at 0.5 MPa - about 32 kg lifted vertically once a 2:1 margin is applied - and the built-in magnet means CMSG, DMSG or EMSG switches snap on without a special-order piston.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X150-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X150-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 MAJ40X150-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MAJ40X150-40S Is Used
Bushing Press-Fit
A 628 N push at 0.5 MPa seats small bushings into aluminium pump housings, and the 40 mm trim lets one cylinder serve several housing depths.
Case Stopper
Raises a stopper blade in front of cartons on a 150 mm pitch packaging line; the trim window dials blade height per carton size.
Fixture Ejector
Ejects finished die-cast clips from a nesting fixture at up to 800 mm/s, then retracts fully clear for operator loading.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X150-40S the Right Cylinder?
When the job needs less, the MAJ32X150-40S still gives 402.2 N of push at 0.5 MPa; above 40 mm you leave the MA series, as this is its biggest bore. Match FA flange or LB foot mounting and I or Y rod knuckles to your fixture - the adjustable-stroke version carries no SDB option. Treat the stop screw purely as an extend-stroke limit: it is not a load lock, so a suspended load will move if air pressure drops.
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 MAJ40X150-40S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa that rises to 879.6 N push and 738.9 N pull, with a theoretical peak of 128.1 kgf. The stop screw trims the 150 mm extend stroke by up to 40 mm, so the shortest extend is 110 mm.
Bore 40 models take 1/8" ports and the 16 mm rod carries an M12x1.25 male thread; the air supply must be filtered to 40 um. FA flange or LB foot mounting plus I or Y rod knuckles bolt it into most fixtures without adapters.
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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