Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X400-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X400-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 400mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- 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 MAJ32X400-50S
Stop where the recipe needs, not where the catalogue fixes it: the -50 window lets this 400 mm extend stroke be pinned anywhere down to 350 mm by an external screw. The bore 32 piston pushes 402 N and pulls 346 N at 0.5 MPa, reaching 563 N push at 0.7 MPa and 82 kgf at the theoretical 1.0 MPa point. Double-acting, 30-800 mm/s, 0.15-1.0 MPa (22-145 psi) clean dry air.
Corrosion resistance is structural here: a stainless rolled barrel and 20 um hard-chrome rod stay smooth where painted minis blister, making the MAJ32X400-50S a natural for outdoor gates and rinse zones. Sensing needs no option code either - the magnet is standard and CMSG / DMSG / EMSG switches mount directly. In practice, budget about 241 N for useful work at 0.5 MPa, close to a 20 kg vertical lift with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X400-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X400-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MAJ32X400-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -50 | 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 MAJ32X400-50S Is Used
Battery change gantry latch
Stainless build and chrome rod survive charging-room fumes; the trimmed stop sets latch depth per truck model.
Film carriage stop on a shrink wrapper
Reset the screw between film widths within the 50 mm window; 346 N return pulls the carriage home.
Damper arm on a dust-collector hopper
402 N at 0.5 MPa swings the flap while dust-laden air would corrode a coated actuator body.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X400-50S the Right Cylinder?
Compare forces first: bore 25 offers 245 N at 0.5 MPa, this bore 32 gives 402 N, and bore 40 delivers 628 N, so pick by the 0.6x rule rather than raw thrust. A 400 mm stroke magnifies misalignment - use the LB foot or FA flange plus outside guides, and keep the I or Y knuckle aligned to the load axis. The stop screw defines extension only; it is a rigid limit, not a holding brake, so put a counterbalance or external lock on loads that must hang when air fails.
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 MAJ32X400-50S FAQ
402.2 N push and 345.6 N pull at 0.5 MPa, 563.0 N push and 483.8 N pull at 0.7 MPa, 82 kgf theoretical at 1.0 MPa. It runs 0.15-1.0 MPa (22-145 psi), survives 1.5 MPa (215 psi) proof, moves at 30-800 mm/s, and its extend stroke can be set anywhere within the -50 adjust window. Ports are 1/8"; the rod is 12 mm with an M10x1.25 male thread.
No. The -50 stop screw is a hard mechanical limit on the extend direction only - it sets the end-of-stroke position but does not clamp the piston, and the rod will drift if pressure is lost. For hanging loads, add an external brake or counterbalance; the standard built-in magnet with a CMSG or EMSG switch can at least flag the moved position.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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