Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 200mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke200 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 MAJ40X200-40S
Double-acting on both sides of the piston, the MAJ40X200-40S reaches 200 mm and lets an external stop screw trim the extend stroke anywhere inside a 40 mm window. At 0.5 MPa the bore-40 piston pushes 628 N, and at 0.7 MPa that climbs to 880 N, running on 0.15-1.0 MPa (22-145 psi) filtered air.
The riveted round body pairs a stainless-steel barrel with a hard-chrome plated 16 mm rod, which is why this mini shrugs off washdown and damp shop air better than painted-steel minis. In practice you can plan on roughly 377 N of usable push at 0.5 MPa, or about 32 kg of vertical lift with a 2:1 margin. Bumper pads are fixed, and the magnet comes standard for CMSG / DMSG / EMSG switches.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MAJ40X200-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 MAJ40X200-40S Is Used
Lift-and-present gantry
On a small pick gantry feeding a CNC lathe, the 200 mm stroke lifts fixtures of about 32 kg vertically while the -40 window dials in the top park position.
Bench press fixture
A light crimp or snap-fit press station uses the 628 N push at 0.5 MPa to seat rubber grommets, with the stop screw locking in repeatable part height.
Conveyor gate kicker
Swinging a diverter gate on a bottling line between fills, the stainless barrel handles splash-zone rinse-down better than a painted mini cylinder.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-40S the Right Cylinder?
At 40 mm bore this is the strongest size in the MA range: 628 N push and 528 N pull at 0.5 MPa, against 402 N for the 32 mm bore below it. If your load needs under about 240 N of working force, the 32 mm size is cheaper; above roughly 550 N per cylinder this is your ceiling within the series. Run it at 30-800 mm/s.
The -40 stop screw is a mechanical end stop that shortens extension only - it does not hold a load if air is lost, so add a blocking valve or external stop for that. Mount with the FA flange or LB foot, add an I or Y knuckle on the rod, and on a 200 mm stroke keep side loads low or guide the load externally. A magnet is built in, so CMSG, DMSG or EMSG switches clip on with no special piston.
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 MAJ40X200-40S FAQ
At 0.5 MPa the 40 mm bore pushes 628.3 N and pulls 527.8 N; at 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum is 128.1 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and the extend stroke trims by up to 40 mm.
The barrel is stainless steel rolled onto aluminium-alloy covers with a stainless-steel block, and the 16 mm rod is carbon steel with a 20 um hard-chrome plate. That combination resists mild corrosion and rinse-down far better than painted minis, while the fixed bumper pads soften stroke-end impact - they are not adjustable cushions.
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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