Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X75-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X75-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke75 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 MAJ40X75-75S
Built around a 40 mm stainless barrel, this 75 mm stroke MAJ carries the widest trim in the family: the extend stroke can be dialed down through a full 75 mm window by the external stop screw. It pushes 628 N at 0.5 MPa and runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
Theory says the rod could raise 64 kg vertically at 0.5 MPa, but keeping a 2:1 margin means you should plan to lift about 32 kg per stroke in practice. The riveted round body, stainless barrel and 16 mm hard-chrome rod handle damp or outdoor air; the fixed anti-impact pad decelerates the stroke end (choose MACJ if an adjustable air cushion is wanted). The magnet is standard, so CMSG / DMSG / EMSG switches clip on with no special-order piston.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X75-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X75-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MAJ40X75-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MAJ40X75-75S Is Used
Carton lifter in palletizing cells
Halve the 628 N for margin and it lifts roughly 32 kg cartons per cycle at 0.5 MPa.
Pusher on poultry processing lines
The stainless barrel and hard-chrome rod survive daily hose-down where painted bodies corrode.
Spring-rate test bench
The wide 75 mm trim window replaces several fixed-stroke cylinders across different test setups.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X75-75S the Right Cylinder?
Size check at 0.5 MPa: a MAJ32 gives 402 N push while this MAJ40 gives 628 N - step up only if you also need a double rod (MAD) or cushioning (MACJ). The -75 window is the broadest trim on a 75 mm stroke, so a single cylinder covers many setup positions. Note the stop screw is a mechanical end stop only; with air lost the rod still drifts, so add a check or brake valve where holding matters. Mount with FA flange or LB foot, fit an I or Y knuckle to the M12x1.25 male rod thread, and pipe the 1/8" ports.
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 MAJ40X75-75S FAQ
At 0.5 MPa: 628.3 N push, 527.8 N pull. At 0.7 MPa: 879.6 N push, 738.9 N pull. At the 1.0 MPa maximum the theoretical force reaches 128.1 kgf.
No. Every MAJ ships with the magnet built in as standard, so CMSG, DMSG and EMSG switches mount on the stainless barrel without a special-order piston.
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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