Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 500mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke500 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 MAJ40X500-75S
With a full 500 mm of travel and a 75 mm on-site trim window, this bore-40 MAJ brings adjustable-stroke control to long-run compact stations. Air works both directions, and the external stop screw shortens the extend stroke anywhere within the ordered 75 mm range - it trims, it never lengthens past 500 mm. At 0.5 MPa the piston pushes 628 N (pulls 528 N); at 0.7 MPa that climbs to 880 N push. Plan real work around roughly 377 N per cycle so the drive keeps margin.
The riveted round body pairs a stainless-steel barrel with a hard-chrome plated 16 mm rod, an easy-to-clean build for damp food or outdoor lines where painted mini cylinders corrode. A fixed anti-impact pad softens each stroke end - it decelerates only, it is not an adjustable air cushion (that is the MACJ family). Every unit ships with the magnet built in, so CMSG / DMSG / EMSG switches snap on without special ordering.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MAJ40X500-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 MAJ40X500-75S Is Used
Long-stroke ejector on a packaging line
Trims the extend stroke down toward 425 mm where a shorter push clears a carton chute, delivering about 628 N to seat product at 0.5 MPa.
Pallet-stacking push station
Moves stacked totes across a wide gap between stations; budget near 377 N of useful force so the 40 mm bore drives loads with margin left over.
Position-switched gate on a washdown conveyor
Clip a CMSG switch to the stainless barrel for end-of-stroke confirmation while the bumper pad quiets impact at up to 800 mm/s.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-75S the Right Cylinder?
Bores step down to 25 mm (245 N push at 0.5 MPa) and 32 mm (402 N) below; 40 mm at 628 N is the ceiling of the MA family, so there is no larger bore to upsize to. Speed 30-800 mm/s across 0.15-1.0 MPa (22-145 psi). Mount with FA flange or LB foot, plus I and Y rod knuckles; adjustable versions carry no SDB option. On air loss the stop screw only pins the set end of stroke - the piston still drifts, so add a valve if you need a mid-stroke hold. At 500 mm of stroke, guide the load or keep side thrust low to protect the 16 mm rod from bending.
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 MAJ40X500-75S FAQ
Push is 628 N and pull 528 N at 0.5 MPa; at 0.7 MPa push rises to 880 N and pull to 739 N. Theoretical peak is 128 kgf at 1.0 MPa. The extend stroke is adjustable within the ordered 75 mm window, so effective stroke can be set from 425 to 500 mm, with speed 30-800 mm/s and pressure 0.15-1.0 MPa (22-145 psi).
The magnet is built in as standard on every MA-series unit - CMSG, DMSG and EMSG reed switches mount directly on the stainless barrel with no special-order piston. Mounting choices are FA flange or LB foot, with I and Y rod knuckles available; adjustable-stroke versions do not offer SDB or a back-cover code. The port on this bore is 1/8" and the male rod thread is M12x1.25.
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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