
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-100S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 100mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
One cylinder covering effectively every stroke from near zero to 100 mm: ordered with the full 100 mm window, the MAJ20X100-100S lets the stop screw set extend travel anywhere inside the ordered range on site. It is double-acting with the magnet included, running 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
Push is 157.0 N and pull 131.9 N at 0.5 MPa (219.8 N pushing at 0.7 MPa), so design around roughly 94 N of work - about 8 kg of vertical lift at a 2:1 margin. The stainless round tube and chrome-plated 8 mm rod outlast painted minis in humid plants, and the riveted body stays compact even at full stroke.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-100S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 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 | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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.
Sweep loaded trays between two conveyor lanes over 60-100 mm, tuned on site; 157 N at 0.5 MPa handles full trays without hammering.
Advance sample racks into the sampling position with repeatable strokes trimmed per rack type; the stainless barrel tolerates reagent splash.
Flip the blade between two chutes with 131.9 N of pull; an EMSG switch reports blade position back to the sort controller.
If 157.0 N at 0.5 MPa is marginal, the 25 mm MAJ lifts that to 245.3 N; if the job is lighter, the 16 mm bore saves space at 100.5 N. Over a 100 mm stroke an off-axis load will bend the 8 mm rod, so guide the payload or keep it centered.
The stop screw trims the extend stroke only and is not a mid-stroke lock - on air failure the piston drifts together with the load. FA flange or LB foot mount the body, and the factory magnet works with CMSG / DMSG / EMSG switches from day one.
Quick checklist
At 0.5 MPa: 157.0 N pushing and 131.9 N pulling. At 0.7 MPa: 219.8 N pushing and 184.7 N pulling. Theoretical maximum 32.0 kgf at 1.0 MPa. Nominal stroke 100 mm with an adjustable extend window of 100 mm, so the stop screw can shorten travel across the whole range. Port 1/8", rod 8 mm, speed 30-800 mm/s.
FA flange and LB foot mount the body; I and Y rod knuckles connect the payload - note the adjustable-stroke version has no SDB option or back-cover mounting code. With 100 mm of stroke, flange mounting plus an external guide is the safer pick for off-center loads.
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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