
The AirTAC Airtac MDJ Adjustable Cylinder MDJ6X35-20S is a genuine MD multi-mount cylinder (adjustable stroke), 6 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 14.1 N of push force at 0.5 MPa. A bumper cushions the impact.
The MDJ6X35-20S is an adjustable-stroke multi-mount cylinder: a compact square-bodied double acting cylinder that fixes from 6 directions - front, back, left, right, top and bottom - and mounts side by side with other cylinders to save space. With a 6 mm bore, 35 mm stroke and a 20 mm adjustable range, it covers small push, clamp and stop jobs where the working length is tuned on installation. Theoretical push force at 0.5 MPa is about 14.1 N for this bore, the cushion is a bumper, and magnetic-switch slots are machined around the body with no added lubricant required.
This is a genuine AirTAC part, the MDJ adjustable-stroke version in the MD standard multi-mount family. The trailing S means this SKU comes with a magnet for position switches. We can confirm dimensions and sizing for your exact stroke from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ6X35-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 6 mm |
| Push thrust @0.5 MPa | 14.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper |
| Mounting | Fix from 6 directions; mountable side by side |
Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
Start with thrust: at 0.5 MPa this 6 mm bore provides 14.1 N theoretical push, so move up a bore if your application needs more. MD is the standard multi-mount where rod rotation is permitted; pick MK when rotation must be prevented. This model is double acting with adjustable stroke; the range also includes single push, single pull and double rod. Stroke follows the bore 6 double acting table up to 35 mm, with this MDJ adding a 20 mm adjustable range - note the short cover cautions against an over-long stroke. The S suffix means the magnet is fitted; thread is PT as coded, and G is available.
Hold small housings or brackets during bonding or screwdriving. The 20 mm adjustable range lets technicians fine-tune clamp position, and 6-direction fixing fits crowded fixtures.
Nudge and square up small parts against a guide on narrow conveyor lines. The side-by-side mounting keeps multi-cylinder banks tidy, and the bumper cushions each touch.
Raise or lower small parts between a chute and a sensor nest at inspection points. Fixing from 6 directions, including top and bottom, simplifies mounting in tight vertical envelopes.
The S means this SKU is built with a magnet, so magnetic switches can detect rod position in the slots around the body; SKUs without an S have no magnet. The code as shown specifies PT thread; a trailing G would instead specify G thread. Ports are M5x0.8 on this 6 mm bore.
The MDJ design adds a 20 mm adjustable range on top of the coded 35 mm stroke, set on the machine during installation. For bore 6 double acting, stroke runs up to 35 mm, and a short cover means an over-long stroke risks fouling - keep strokes conservative. Overall dimensions are stroke-dependent, so confirm them from the datasheet and check side-load limits with us.