Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke160 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- 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 MAJ20X160-75S
A 75 mm stop-screw window makes the MAJ20X160-75S one of the most tunable 20 mm minis: set the extend stroke anywhere from 85 mm to the full 160 mm without changing hardware. Air on both sides drives 157.0 N of push and 131.9 N of pull at 0.5 MPa, climbing to 219.8 N at 0.7 MPa, with a theoretical ceiling of 32 kgf at 1.0 MPa.
The riveted stainless round barrel and hard-chrome plated carbon-steel rod (20 um plating) take humidity and light washdown far better than painted mini bodies. Budget about 94 N for real work at 0.5 MPa, or roughly 8 kg of vertical lift with a 2:1 margin, and remember the fixed bumper pads soften stroke ends but are not adjustable air cushions.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 300 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MAJ20X160-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -75 | 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 MAJ20X160-75S Is Used
Diverter gate on carton packers
One cylinder serves several pack formats: turn the stop screw between changeovers to shift the gate throw from 85 mm up to 160 mm, no hardware swap needed.
Multi-size pusher on electronics benches
About 94 N of usable push at 0.5 MPa slides PCB trays or component bins between stations, while the built-in magnet feeds a DMSG switch for end-of-stroke confirmation.
Spring-return test rigs
The 219.8 N push at 0.7 MPa seats light springs or gaskets in test fixtures; the riveted stainless body tolerates the coolant mist around leak-test benches.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-75S the Right Cylinder?
Against neighbours on the same 0.5 MPa supply, bore 16 offers 100.5 N and bore 25 offers 245.3 N, so step down for sub-10 kg parts and up when 157 N runs close to the limit. FA flange and LB foot mounts, plus the standard magnet working with CMSG, DMSG or EMSG switches, cover most positioning jobs. The screw is an extend-end stop only; with air lost the rod still moves, so it is not a load-holding brake. Over 160 mm, keep the tooling guided so the 8 mm rod sees little side load.
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 MAJ20X160-75S FAQ
At 0.5 MPa it pushes 157.0 N and pulls 131.9 N; at 0.7 MPa the figures become 219.8 N and 184.7 N, and the theoretical maximum reaches 32 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.
No. Every MAJ20X160-75S ships with a built-in magnet as standard, so CMSG, DMSG and EMSG switches clamp straight onto the stainless barrel without ordering a special piston.
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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