
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X75-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 75mm 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.
A 40 mm trim window gives the MACJ16X75-40S its edge: the 75 mm extend stroke can be shortened on site with the stop screw whenever the fixture needs a shorter reach. The cylinder is double-acting, runs on 0.15-1.0 MPa (22-145 psi) filtered air and carries a variable cushion at each end, so end-of-stroke shock stays under control across the 30-800 mm/s speed range. The air port is M5x0.8 and the 6 mm rod ends in an M6x1.0 male thread.
At 0.5 MPa this 16 mm bore unit pushes 100.5 N and pulls 86.4 N (140.7 N push at 0.7 MPa, 20.5 kgf theoretical peak). Plan on roughly 60 N of usable work rather than the full rating - that is about 10 kg of vertical lift, or 5 kg if you keep a 2:1 margin. The riveted stainless barrel and hard-chrome plated carbon-steel rod shrug off washdown and damp shop air, and the built-in magnet pairs with CMSG, DMSG or EMSG switches as standard equipment.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X75-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 75 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. |
| ×75 | Stroke length in mm. |
| -40 | 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.
Pushing finished connectors or caps off an assembly nest on an electronics line, with the 40 mm trim tuned to the nest depth.
Swinging a light reject flag or gate on a small cartoner; 100.5 N is ample for the gate and the cushions soften every cycle between 30-800 mm/s.
Applying about 60 N to probe or seat a sensor sample in a lab fixture, with extend length re-set quickly between part revisions.
Bore 16 is the smallest in the MA range, so if the load needs more than about 60 N, step up to bore 20 (157.0 N push at 0.5 MPa) or bore 25 (245.3 N). The stop screw sets the extend position only - it is an end stop, not a lock, and the rod will drift if air is lost, so add a valve or external support where holding matters. Mount with the FA flange or LB foot, add an I or Y rod knuckle where the load pivots, and clip a CMSG, DMSG or EMSG switch onto the barrel to read position. On a 75 mm stroke with a 6 mm rod, keep side loads low or guide the load externally to protect the bushing. If the trim range turns out unnecessary, the fixed-stroke MAC series with the same cushioning is the simpler order.
Quick checklist
At 0.5 MPa it pushes 100.5 N and pulls 86.4 N; at 0.7 MPa the push rises to 140.7 N (pull 120.9 N); the theoretical maximum is 20.5 kgf at 1.0 MPa. Ports are M5x0.8 and the rod thread is M6x1.0.
The stop screw shortens the 75 mm extend stroke anywhere within the ordered 40 mm window. It is a mechanical end stop, not a load-holding brake - with air removed the piston can still drift - and the variable air cushion at both ends absorbs the remaining impact.
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