Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 350mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke350 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 MAJ40X350-75S
Round-body and riveted rather than bolted, the MAJ40X350-75S pairs a stainless barrel with a hard-chrome 16 mm rod to shrug off washdown and damp air in food, outdoor or chemically washed corners of a plant. Its 40 mm bore swings 628 N of push and 528 N of pull at 0.5 MPa, enough to slide a loaded gate or lift roughly 32 kg vertically once a 2:1 margin is applied.
The -75 suffix is the on-site adjustment span: an external stop screw trims the extend stroke back by up to 75 mm, handy when the final stop position is only settled during commissioning. Travel runs 30-800 mm/s on filtered air at 0.15-1.0 MPa (22-145 psi), fixed bumper pads soften stroke ends, and the standard-fit magnet accepts CMSG, DMSG or EMSG switches with no special-order piston.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MAJ40X350-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -75 | 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 MAJ40X350-75S Is Used
Glue-bead traverse on a case packer
Carries a hot-melt nozzle across 350 mm of carton top seam; the 75 mm stop-screw range absorbs late changes to seam length without remounting anything.
Pallet-layer diverter drive
Slides a diverter blade across a palletizing infeed to route layers left or right, using 628 N of push at 0.5 MPa to shift stubborn blanks.
Deep-draw part ejector
Pushes formed housings out of a shallow die on a press line - 528 N of pull retracts the tooling smoothly against spring resistance.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X350-75S the Right Cylinder?
For loads under roughly 380 N of real work at 0.5 MPa, the smaller MAJ32X (402 N push at 0.5 MPa) may be enough; anything beyond what this 40 mm bore handles needs a larger family, since MA tops out at bore 40. Note the trim screw is a mechanical extend-stroke stop, not a load lock - with air lost the rod can still creep, so fit an external support for held positions.
Over 350 mm of travel, side loads bend the 16 mm rod quickly, so run the load in external guides. Choose FA flange or LB foot mounting, add I or Y knuckles if the joint must articulate, and rely on the standard magnet for CMSG, DMSG or EMSG position feedback.
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 MAJ40X350-75S FAQ
Expect 628 N push and 528 N pull at 0.5 MPa, climbing to 880 N push and 739 N pull at 0.7 MPa, with a 128.1 kgf theoretical maximum at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi) filtered to 40 um.
The barrel is a rolled stainless tube mated to a hard-chrome plated carbon-steel rod, a combination that resists the rust and paint flaking painted minis suffer in washdown, outdoor or humid spots. The riveted round body stays compact, and the built-in magnet accepts CMSG, DMSG or EMSG switches as standard.
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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