Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X85-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X85-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 85mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke85 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 MAJ32X85-20S
A bore-32 MAJ pushes 402 N and pulls 345.6 N at 0.5 MPa - enough for clamping, ejecting and short vertical lifts in compact machines. The extend stroke is trimmable on site: an external stop screw shortens the 85 mm travel by up to 20 mm inside the ordered -20 window, with no shims or disassembly. Air runs at 0.15-1.0 MPa (22-145 psi) and rod speed from 30-800 mm/s.
The riveted round body wraps a stainless-steel barrel around a hard-chrome plated rod, so washdown and damp plants are far less of a threat than with painted minis. Fixed bumper pads soften stroke-end impact (deceleration only - adjustable cushioning lives in the MACJ family). Every unit ships with its magnet built in, so CMSG, DMSG or EMSG switches clip straight on. Planning around 60 percent of the rating leaves about 241 N of the 402 N push for real work at 0.5 MPa.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X85-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X85-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 85 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 MAJ32X85-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 MAJ32X85-20S Is Used
Die ejector on a small press
Kicks stamped terminals out of a compact die at up to 800 mm/s, with the 20 mm trim letting the setter dial in the eject position after tryout.
Fixture clamp for machined housings
Holds aluminium pump housings against a stop during drilling; the derated 241 N push at 0.5 MPa keeps clamping repeatable without crushing.
Carton push-off on a packaging line
Sweeps small cartons from a lane into a chute, with the stainless barrel and chrome rod surviving routine washdown between shifts.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X85-20S the Right Cylinder?
Compare across the range: a 25 mm MAJ manages 245.3 N push at 0.5 MPa, while stepping up to 40 mm buys 628.3 N - this 32 mm size sits in the middle for mid-weight pushing and clamping. Note the trim screw is an end stop, not a mid-stroke brake: with air off, the rod can still be back-driven, so add a separate lock where a load must hold. FA flange and LB foot mounts plus I and Y rod knuckles cover most fixings, and the magnet is standard on every unit.
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 MAJ32X85-20S FAQ
Double-acting with an adjustable extend stroke (-20 window on 85 mm). At 0.5 MPa it pushes 402.2 N and pulls 345.6 N; at 0.7 MPa that rises to 563.0 N push and 483.8 N pull, with a theoretical maximum of 82 kgf at 1.0 MPa. Rod is 12 mm with M10x1.25 male thread, port 1/8", pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Yes. The magnet comes built in as standard, so CMSG, DMSG or EMSG reed switches mount on the barrel without a special-order piston. The -20 external stop screw trims the extend stroke up to 20 mm shorter on site; fixed bumper pads, not an air cushion, soften the stroke end.
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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