
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X225-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 225mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
Compact, riveted and stainless: the MACJ16X225-20S is a double-acting 16 mm bore mini with an adjustable extend stroke over a 20 mm band plus a variable cushion at each end. Push force reaches 100.5 N at 0.5 MPa; that converts to lifting about 5 kg vertically once you take a 2:1 margin. The operating range is 0.15-1.0 MPa (22-145 psi) and speed spans 30-800 mm/s.
The hard-chrome plated steel rod slides in a stainless barrel rolled onto aluminium covers, sealing well against mild corrosion in damp workshops. Every unit ships with the position magnet fitted, ready for CMSG / DMSG / EMSG switches.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X225-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 225 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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.
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×225 | 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.
Pushes populated PCBs off an unload conveyor edge; 100.5 N at 0.5 MPa clears board and carrier weight easily.
Sequences parts on a rotary indexing table, with CMSG switches confirming both end positions of the 225 mm travel.
Advances pharma vial trays one pitch at a time inside a packaging cell; the stainless barrel tolerates frequent wipe-downs.
Compare before you buy: this 16 mm bore makes 100.5 N push and 86.4 N pull at 0.5 MPa, while a 25 mm bore jumps to 245.3 N push. If your part weighs under 5 kg and needs a vertical lift with margin, this size is enough. Long 225 mm strokes on a 6 mm rod demand clean alignment and external guidance to avoid bending loads.
Stroke trimming happens mechanically inside the 20 mm adjust window; remember the adjuster holds position only while air pressure holds it. Mount via FA flange or LB foot, and the factory-fitted magnet means DMSG or CMSG switches clip on directly.
Quick checklist
Rated figures: push 100.5 N and pull 86.4 N at 0.5 MPa, push 140.7 N at 0.7 MPa, and 20.5 kgf theoretical maximum at 1.0 MPa. The MACJ16X225-20S runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s with M5x0.8 ports and an M6x1.0 male rod thread.
The round barrel is stainless steel and the 6 mm rod is hard-chrome plated carbon steel about 20 um thick, so occasional washdown and humidity cause far less trouble than on painted mini cylinders. Aluminium covers are rolled onto the tube for a sealed riveted body; avoid submersion and confirm aggressive chemicals from the datasheet.
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.