
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-100S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 175mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
A full 100 mm of on-site trim - the widest window in the MAJ adjustable range - makes the MAJ40X175-100S the flexible one of the family. This double-acting, round-body mini cylinder runs a 40 mm bore over a 175 mm stroke; an external stop screw shortens the extend stroke anywhere within that 100 mm band. At 0.5 MPa it pushes 628 N and pulls 528 N, so budget about 377 N for steady work at 0.15-1.0 MPa (22-145 psi).
Construction stays true to the MA platform: stainless barrel, 16 mm hard-chrome rod, aluminium covers rolled onto the tube, and fixed bumper pads that soften landings without acting as an adjustable cushion. The magnet is built in as standard - CMSG, DMSG or EMSG switches snap on for end-of-stroke signalling. Operating envelope: speed 30-800 mm/s, air filtered to 40 um, -20 to +70 C, proof pressure 1.5 MPa (215 psi).
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-100S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed anti-impact bumper pads |
| 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.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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.
One cylinder serves multiple carton heights - retune the 100 mm window between SKUs instead of swapping hardware; 628 N tucks stiff flaps.
Rinsed-down or humid warehouse air is no problem for the stainless barrel; 880 N at 0.7 MPa diverts loaded totes at speed.
The external stop sets clamp position per fixture variant, and 528 N of pull releases the arm cleanly each cycle.
Sizing check: the 32 mm bore delivers 402 N push at 0.5 MPa, so drop a size only if roughly 240 N of working force suffices; otherwise 40 mm - the largest MAJ bore - is right. The 100 mm window fits machines whose stop position changes between product runs. Keep in mind the adjuster trims the extend stroke mechanically and is not a load-holding brake; the rod moves under gravity or residual pressure if air is lost. FA flange or LB foot mounting, I/Y knuckles available; at 175 mm of stroke, support side loads with external guides to protect the 16 mm rod.
Quick checklist
Extend force 628.3 N and retract 527.8 N at 0.5 MPa; 879.6 N and 738.9 N respectively at 0.7 MPa; 128.1 kgf theoretical maximum at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s.
It does not. The MAJ carries fixed anti-impact pads that decelerate the piston at the set end position - they cannot be tuned like the adjustable cushions on the MACJ family. For tunable cushioning plus stroke adjustment, move to MACJ; for this model, the 100 mm stop screw plus bumper pads cover most positional tuning needs.
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