Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X80-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X80-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 80mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke80 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 MAJ40X80-10S
Precision trimming is the point of the MAJ40X80-10S: the extend stroke of this 80 mm, 40 mm bore cylinder can be pulled back by up to 10 mm with the external stop screw. It pushes 628 N at 0.5 MPa and 879.6 N at 0.7 MPa, double-acting on filtered air at 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s.
Vertical jobs work out simply: 628 N is about 64 kgf theoretical, so with a 2:1 margin plan to lift roughly 32 kg per stroke. The riveted round body pairs a stainless barrel with a 16 mm hard-chrome rod for corrosion resistance in food-adjacent and outdoor cells, and the magnet is included as standard for CMSG, DMSG or EMSG switches. The fixed anti-impact pad decelerates the rod end - it is a deceleration pad, not a cushion valve.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X80-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X80-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MAJ40X80-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -10 | 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 MAJ40X80-10S Is Used
Casting ejection in die fixtures
With a 2:1 margin it lifts roughly 32 kg of aluminum casting per stroke at 0.5 MPa.
Reject gate on sortation conveyors
The 10 mm trim lines the gate up with the belt edge during commissioning, no shimming needed.
Sample pressing in laboratory rigs
879.6 N at 0.7 MPa compresses powder samples in stainless dies without a bench press.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X80-10S the Right Cylinder?
Compare the MAJ32 at 402 N push (0.5 MPa) when the load is lighter, or stay at this MAJ40's 628 N for heavier clamps. The narrow 10 mm window suits fine setup trims; wider windows exist on other codes in the family. Treat the adjuster purely as a mechanical end stop - on air loss the piston drifts, so it is no substitute for a check or brake valve. FA and LB mounts plus I and Y knuckles attach to the M12x1.25 male rod thread; air ports are 1/8".
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 MAJ40X80-10S FAQ
At 0.5 MPa the rod pushes 628.3 N and pulls 527.8 N. At 0.7 MPa push reaches 879.6 N and pull 738.9 N. The theoretical maximum at 1.0 MPa is 128.1 kgf.
A high-precision stainless-steel barrel is rolled together with aluminium-alloy covers and a stainless block, while the 16 mm carbon-steel rod carries a 20 um hard-chrome plate - a combination that stands up to washdown and outdoor air.
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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