
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-100S 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.
One cylinder, several strokes: the stop screw on the MAJ20X160-100S spans a full 100 mm, so extend travel lands anywhere from 60 mm up to the ordered 160 mm without touching the air circuit. Force stays constant across that range - 157 N push and 132 N pull at 0.5 MPa, and 220 N push at 0.7 MPa from the 20 mm bore.
Under the skin it is a riveted round-body mini: stainless-steel barrel, aluminium covers, and a hard-chrome plated 8 mm rod that laughs at mild corrosion and washdown mist. Fixed anti-impact pads ease both stroke ends, and because the magnet is built in as standard, CMSG, DMSG and EMSG switches bolt on whenever sensing is needed. For sizing, treat about 94 N as the dependable push at 0.5 MPa - the remainder of the 157 N rating is duty margin, not spare capacity.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-100S |
|---|---|
| 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.
| 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.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -100 | 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.
Knock baked trays off conveyor combs; retune extend depth within the 100 mm band when tray styles change between shifts.
Bring a dial or vision gauge to parts of varying height; the wide trim band covers the whole part family on a single bench.
Raise light locating pins beneath pallet fixtures; 157 N at 0.5 MPa lifts the pins against pallet weight with margin to spare.
The long 100 mm window suits mixed-product lines: verify the shortest setting (60 mm) still clears your tooling before committing. Force-wise the neighbours are about 100 N (bore 16) and 245 N (bore 25) at 0.5 MPa, so this 157 N class covers small gates, trays and lifters between them. The trim screw shortens extend travel only and works as an end stop - it will not lock the load, and on air failure the piston drifts, so add mechanical or valved holding where safety demands it. FA flange or LB foot plus I or Y knuckles handle the mount, and at up to 160 mm of exposed 8 mm rod, carry side loads in external guides to protect the chrome surface.
Quick checklist
Extend 157 N and retract 132 N at 0.5 MPa; extend 220 N and retract 185 N at 0.7 MPa; about 32 kgf theoretical maximum at 1.0 MPa. Extend stroke runs 60-160 mm within the 100 mm trim window, double-acting, on 1/8" ports with an M8x1.25 rod thread.
Filtered air at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and -20 to +70 C operation. The stainless barrel and hard-chrome plated rod tolerate washdown and outdoor damp far better than painted-steel minis.
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.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.