
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X90-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 90mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
A slim 16 mm bore actuator for tight layouts: the MAJ16X90-20S is double-acting, and its external stop screw lets you shorten the extend stroke anywhere inside the ordered 20 mm window, down from the 90 mm nominal travel. It runs on 0.15-1.0 MPa (22-145 psi) of filtered air and cycles at 30-800 mm/s.
At 0.5 MPa it pushes 100.5 N and pulls 86.4 N, so plan roughly 60 N of real work and expect it to lift about 5 kg vertically with a 2:1 margin. The stainless round barrel and hard-chromed 6 mm rod resist damp washdown corners that corrode painted-steel minis, and the fixed bumper pad softens the stroke-end hit - it decelerates only, it is not an adjustable cushion.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X90-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 90 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×90 | 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.
A 90 mm reach with 20 mm of on-site trim suits bench-top lifts where the stop point must be dialed in against glassware - 100.5 N at 0.5 MPa moves light trays gently.
Push 100.5 N is enough to kick small PCB carriers between conveyor lanes; the stainless barrel stands up to flux fumes and IPA wipe-downs.
Fixture a small inspection camera and use the trim window to repeat a 70-90 mm advance; the magnet drives a CMSG switch for cycle confirmation.
This is the smallest MA bore, so nothing sits below it; step up to the 20 mm MAJ (157.0 N push at 0.5 MPa) when 100.5 N feels marginal. The stop screw only trims the extend stroke and is a mechanical end stop, not a mid-stroke lock - if air is lost the rod can still drift under load.
Mount with the FA flange or LB foot, and the standard magnet reads position through CMSG, DMSG or EMSG switches with no special-order piston needed.
Quick checklist
At 0.5 MPa this 16 mm bore delivers 100.5 N pushing and 86.4 N pulling; at 0.7 MPa that rises to 140.7 N and 120.9 N, with a theoretical peak of 20.5 kgf at 1.0 MPa. Rod speed runs 30-800 mm/s on air filtered to 40 um, pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa = 215 psi, and the extend stroke trims within the ordered 20 mm window. Port is M5x0.8, rod thread M6x1.0.
The rolled round barrel is stainless steel and the 6 mm rod is hard-chrome plated carbon steel (20 um), so splash, condensation and mild washdown are handled far better than on painted mini cylinders. Aluminium-alloy covers are rolled onto the tube for a compact, sealed body.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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