Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X160-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X160-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 160mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke160 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 MAJ40X160-20S
At 160 mm of travel and Dia 40, this cylinder pushes 628 N and pulls 528 N at 0.5 MPa on a 0.15-1.0 MPa (22-145 psi) supply - enough to lift about 32 kg vertically once a 2:1 margin is taken from the 64 kgf theoretical figure. A stop screw on the rear cover shortens the extend stroke anywhere inside the ordered 20 mm window.
Fixed anti-impact pads cushion both ends of travel (deceleration only; true adjustable cushioning belongs to the MACJ type). Inside, a two-way seal stores grease for long life; outside, the riveted stainless tube and 20 um chrome-plated rod survive humid and lightly washed environments that corrode painted minis.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X160-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X160-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 MAJ40X160-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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 MAJ40X160-20S Is Used
Tray flap tucker
Folds tray flaps on a food packaging line; the 20 mm trim window soaks up flap-thickness variation between SKUs.
Wash basket hoist
Raises loaded wire baskets between a wash tank and drain rail, sized for parts under about 32 kg with guides carrying the frame weight.
Plug gauge actuator
Advances a plug gauge into bored housings on a QC bench, with the stop screw fixing insertion depth per part number.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X160-20S the Right Cylinder?
Pick bore 40 when a 25 mm MA (245 N push at 0.5 MPa) stalls under the load; at 628 N it will carry roughly 377 N of real work. The long 160 mm travel on a 16 mm rod means side loads belong on external guides, not the rod itself. FA flange and LB foot mounts plus I / Y rod knuckles cover most fixturing; G or NPT threads swap for the standard PT, and the air port is 1/8". The adjuster fixes the end of stroke mechanically but is not a lock - if air fails, the piston can still creep back.
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 MAJ40X160-20S FAQ
At 0.5 MPa: 628 N extend, 528 N retract. At 0.7 MPa: 880 N extend, 739 N retract. The theoretical ceiling is 128.1 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) of 40 um filtered air and cycle anywhere from 30 to 800 mm/s.
The rolled stainless tube combined with a 20 um hard-chrome plated rod resists the corrosion that flakes painted minis in damp, food-wash or outdoor spots, and the riveted covers keep the round body sealed with no tie rods or extra hardware to service.
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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