Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X20-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X20-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 20mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke20 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 MAJ32X20-20S
Because the trim window matches the full stroke, the MAJ32X20-20S can be set anywhere from a few millimeters of extend travel up to its complete 20 mm - the most flexible short-stroke option in the MAJ line. Double-acting bore 32 output is 402.2 N push and 345.6 N pull at 0.5 MPa, equivalent to lifting about 41 kg vertically, or roughly 20 kg with a 2:1 safety margin built in.
Its body is a compact riveted assembly: stainless-steel barrel, aluminium-alloy front and back covers, and a 12 mm carbon-steel rod hard-chrome plated to 20 um for sliding life in mildly corrosive air. Fixed bumper pads take the sting out of stroke ends. The piston magnet comes standard for CMSG, DMSG or EMSG switch mounting. Ports are 1/8" on both covers; pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X20-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X20-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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 MAJ32X20-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -20 | 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 MAJ32X20-20S Is Used
Clamping bicycle bracket welding jigs
The rod swings a clamp shoe onto a steel bracket before tack welding; operators dial the contact point anywhere within the 20 mm window as jig tooling changes.
Vial stopper on a filling carousel
A short gate halts vials at the fill head, and the stop screw is reset in seconds when the line switches between 2 ml and 10 ml formats.
Seating bearings in motor end shields
About 20 kg of margin-adjusted vertical press lets the cylinder seat small ball bearings into aluminum end shields on a bench press fixture.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X20-20S the Right Cylinder?
Sizing check: at 0.5 MPa the next bore down (25 mm) gives 245.3 N and the next up (40 mm) gives 628.3 N, so the 32 mm bore at 402.2 N fits mid-weight short-jobs. With the -20 window equal to the stroke, treat the extend travel as continuously settable and document the final setting per machine. Remember the adjuster is a rigid end stop rather than a load-holding lock - under air loss the piston still moves, so add a pilot-operated check or locking valve for held positions. FA flange or LB foot mounting, I or Y knuckles, and the standard magnet cover most small fixture needs.
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 MAJ32X20-20S FAQ
Push is 402.2 N and pull 345.6 N at 0.5 MPa; at 0.7 MPa the numbers climb to 563 N push and 483.8 N pull. Maximum theoretical force at 1.0 MPa is 82 kgf. The cylinder runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, with 1.5 MPa (215 psi) proof pressure.
The ordered window here is 20 mm - the full stroke - so the external stop screw can set extend travel anywhere from a few millimeters up to 20 mm. The screw shortens the stroke only and works as a mechanical end stop; it will not lengthen travel past 20 mm or lock the rod against load. The 30-800 mm/s speed band is unaffected.
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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