
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X65-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 65mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
Between the 10 mm fine-trim and 50 mm wide-window versions of the 65 mm frame, the MAJ16X65-20S gives a 20 mm adjustment band - enough to re-gate one cylinder across two product sizes. Double-acting output is 100.5 N push and 86.4 N pull at 0.5 MPa, rising to 140.7 N push at 0.7 MPa, over a 0.15-1.0 MPa (22-145 psi) supply.
Its rolled stainless barrel resists washdown chemistry that swells painted minis, and the 6 mm hard-chrome rod keeps seal wear low through millions of 65 mm cycles. End-of-stroke impact is handled by fixed bumpers, not adjustable cushions. Practical sizing: reserve about 60 N for real work, leaving roughly 5 kg of vertical lift capability. The cylinder arrives sensor-ready thanks to the standard piston magnet - CMSG, DMSG and EMSG switches all clip on.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X65-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 65 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. |
| ×65 | 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 small cartoner tucks flaps over 65 mm of travel; the 20 mm trim lets one cylinder serve two carton heights, with 60 N of working force keeping board crease-free.
In a tote-sorting corner, 100 N of push swings lightweight diverters while the built-in magnet signals completion via an EMSG switch at the trimmed end position.
Electronics assembly uses the stop screw to pre-set approach depth by up to 20 mm so the 100.5 N nose lands connector pins gently before the full press.
Step comparison: at 0.5 MPa the 16 mm bore yields 100 N while the 20 mm reaches 157 N - move up only when friction and linkage losses eat that gap. The 20 mm window suits changeover tools where stroke resets happen monthly, not hourly. Mount with the FA flange for face alignment or the LB foot for base lines; I and Y knuckles handle rod articulation. Note the adjuster is an extend-side stop, so it sets geometry but will not arrest a falling load when pressure drops.
Quick checklist
At 0.5 MPa: 100.5 N push, 86.4 N pull. At 0.7 MPa: 140.7 N push, 120.9 N pull. Theoretical maximum 20.5 kgf at 1.0 MPa. Operating band 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), air filtered to 40 um, speed 30-800 mm/s, port M5x0.8.
The barrel is stainless steel riveted to aluminium covers - no paint to chip in washdown or outdoor spots - and the 6 mm rod carries a 20 um hard-chrome plate for wear life. Anti-impact bumper pads sit fixed at both ends; they soften impact but are not adjustable air cushions.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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