Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø63mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 155–175mm. Adjustable air cushion (both ends).
- BoreØ63 mm
- Stroke175 mm
- Adjustable155–175 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable air cushion (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S
The AirTAC MBLCJ63X175-20S is a compact double-acting mini cylinder featuring a single Ø16 mm carbon-steel rod and a riveted aluminum barrel. It generates 1558 N of push force at 0.5 MPa, making it the powerhouse of the MBL family for heavy-duty tight-space actuation. A rear stopper lets you dial in the end position, providing a usable travel window of 155 to 175 mm. This 20 mm trim range is ideal for fine-tuning clamping depth or press strokes without machining custom spacers.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model features an adjustable air cushion at both ends. You can screw-tune the end-of-stroke deceleration to handle faster, heavier moving masses while protecting the end covers. The riveted rolling-packed barrel and grease-retaining two-way piston seal ensure consistent lubrication over millions of cycles. Because this SKU includes the -S magnet, it is ready for AirTAC CMSG (reed), DMSG, and EMSG (solid-state) sensor switches to detect rod position. Note that the rear adjuster is a travel stop, not a lock; it sets the stroke endpoint but does not hold the load without live air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø63 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 155–175 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 63 | Bore size in mm. |
| ×175 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S Is Used
Stamping Press Ejection
Generating 1558 N of push force at 0.5 MPa, this cylinder reliably knocks heavy stamped metal blanks out of dies, using the 155-175 mm adjustable window to match varying die depths.
Thermoforming Clamp
The tunable air cushion decelerates the heavy 63 mm piston smoothly at high speeds, preventing end-cover damage when sealing thick plastic sheets against a mold.
Woodworking Door Pressing
Applying up to 318 kgf of theoretical clamping force, it bonds veneer panels while the DMSG solid-state sensor verifies the exact 175 mm closure for consistent glue lines.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S the Right Cylinder?
If you need slightly less force, stepping down to the 50 mm bore yields 981 N of push at 0.5 MPa, whereas stepping up is not possible as 63 mm is the largest available MBL bore. Choose this MBLCJ variant over the MBLJ when your moving mass requires tunable deceleration rather than a simple fixed bumper, or over the MBLC if you need to trim the 155-175 mm travel window on the fly. Remember that neither the rear stopper nor the air cushion acts as a locking mechanism; the rod will drift if air pressure is lost, so external guides are required for side-load stability. Mounting is limited to Basic, FA flange, or LB foot styles, as there is no back-cover or SDB pivot option. For replacements, match the 63 mm bore, 175 mm stroke, 20 mm adjust code, G1/4 port, PT thread, and the -S magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-20S FAQ
This 63 mm bore cylinder delivers 1558 N of push force and 1457 N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 2181 N, with a maximum theoretical output of 318 kgf at 1.0 MPa. It operates at speeds between 30 and 800 mm/s.
The adjustable stroke is a rear travel stopper that lets you mechanically trim the rod's end position within a 155 to 175 mm window. The adjustable air cushion is a separate screw-tuned valve that controls exhaust flow to decelerate the piston near the end caps. Neither system locks or holds the load in place without continuous air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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