Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 70mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke70 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 MAJ32X70-40S
A 40 mm window is the widest trim range in this group: the MAJ32X70-40S can be stopped anywhere from 70 mm down to 30 mm of extend travel by turning the external adjuster screw. Underneath, it is the standard 32 mm MAJ double-acting package - 402 N push and 346 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and 30-800 mm/s speed.
The barrel is a stainless tube rolled tight against aluminium covers, a riveted joint that keeps the round body slim while sealing out moisture; the 12 mm carbon-steel rod is hard-chrome plated for sliding life. Bumper pads are fixed, so they soften landings but are not an adjustable cushion - specify the MACJ if you need that. The standard magnet lets CMSG / DMSG / EMSG switches report end positions, and for sizing budget about 241 N of real work at 0.5 MPa, which lifts a 20 kg part vertically with a 2:1 safety factor.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 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 MAJ32X70-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 MAJ32X70-40S Is Used
Slide stroke dial-in
Shortens a linear slide's extend travel by up to 40 mm during commissioning of an electronics assembly cell, no cylinder swap needed.
Pallet deflector
Holds a deflector plate in front of a forklift charging lane, pushed with 402 N and retracted by 346 N of pull at 0.5 MPa.
Tray press-down
Seals lids on ready-meal trays with a soft, bumper-cushioned final press inside a trimmed 40 mm window.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X70-40S the Right Cylinder?
Compare thrust bands: 25 mm gives 245 N at 0.5 MPa, this bore gives 402 N, and 40 mm reaches 628 N at 0.5 MPa - pick the 32 mm when mid-force and a long trim window both matter. The adjuster limits only the extend stroke and is not a mid-stroke lock; on lost air the piston drifts, so treat it as a calibration stop rather than a holder. FA flange and LB foot are the catalogue mounts, I and Y knuckles handle rod-side joints, and ports are 1/8" with an M10x1.25 male rod thread.
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 MAJ32X70-40S FAQ
This 32 mm double-acting bore produces 402 N push and 346 N pull at 0.5 MPa, 563 N push and 484 N pull at 0.7 MPa, and 82 kgf theoretical maximum at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) air, survives 1.5 MPa (215 psi) proof pressure, and cycles from 30-800 mm/s.
No - it carries fixed anti-impact bumper pads that decelerate the load at stroke end but offer no adjustment; for variable air cushioning look at the MACJ family. What it does give you is the 40 mm extend-trim window via an external stop screw, plus FA flange or LB foot mounting, I / Y rod knuckles, and a standard magnet for CMSG / DMSG / EMSG switches.
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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