
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X160-100S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm 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. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
Where a machine needs its final position set on the shop floor rather than in the order code, the MACJ40X160-100S gives you a 160 mm base stroke with a 100 mm adjustable window on the extend side, driven double-acting and softened by a variable air cushion at each end. The 40 mm bore produces 628 N of push and 528 N of pull at 0.5 MPa on a 0.15-1.0 MPa (22-145 psi) supply.
Keep your fixture design near 377 N of working force for long life, or read it vertically: the rod lifts about 32 kg with a 2:1 margin. The variable cushion is the quiet hero here - dial it in and you can run indexing at the top of the 30-800 mm/s speed range without hammering the covers, while the standard magnet keeps CMSG, DMSG or EMSG switch signalling available from day one.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X160-100S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 | Variable air cushion, both ends |
| Max standard stroke | Up to 500 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | 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.
Raises a counterweighted infeed gate on a saw line; at about 32 kg of vertical lift capability there is headroom for the gate hardware too.
Stops and releases pallets in a gravity flow rack, with the 100 mm window letting crews fine-set the stop face to the pallet nose.
Ejects pressed tiles from a mold in a damp plant where the stainless barrel and chrome rod resist the washdown that ruins coated minis.
If 628 N at 0.5 MPa oversizes your job, bore 32 delivers 402 N in the same round-body family; if it undersizes, bore 50 gives 981 N. For jobs that never need trimming, the fixed-stroke MAC offers the same cushion and body, and the MACD adds a second rod for anti-rotation. The 100 mm stop screw only shortens the extend stroke - it cannot lengthen travel past 160 mm and it is not a mid-stroke lock, so a losing-pressure piston still coasts. FA flange or LB foot, I and Y knuckles, and external guides recommended for side loads on this 160 mm stroke.
Quick checklist
Push at 0.5 MPa is 628 N and pull is 528 N. At 0.7 MPa the numbers climb to 880 N push and 739 N pull, and the theoretical ceiling is 128 kgf at 1.0 MPa. Port size is 1/8", rod thread M12x1.25, rod diameter 16 mm, speeds 30-800 mm/s.
The stop screw is a mechanical end stop that trims the extend stroke within the 100 mm window; it is not a load-holding brake. With pressure removed the piston can still be pushed off its setting, so isolate air or fit an external stop whenever position must be kept under load.
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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