Collection: EMC Series SQ Long-Stroke Compact Pneumatic Cylinders

Technical information & FAQs

EMC SQ Compact Pneumatic Cylinders

EMC Series SQ pneumatic cylinders are double-acting compact actuators designed for machinery where installation space is restricted but the application needs more stroke flexibility than a conventional short-stroke compact cylinder. EMC currently identifies SQ as the long-stroke branch of its compact pneumatic cylinder range.

The square-profile aluminium body provides a short, robust actuator package for clamping, lifting, holding, positioning and general automation duties. The current Cylinder Warehouse SQ range covers bore sizes from 25 to 100 mm with numerous stroke combinations, allowing the same basic platform to be used across widely different machine-force requirements.

Browse all EMC pneumatic cylinders, compare EMC SQN compact pneumatic cylinders, or view the wider compact pneumatic cylinder range.

More Stroke Without Moving to a Conventional Profile Cylinder

The main reason to choose EMC SQ is packaging. A machine may need greater linear travel but still have insufficient room for a conventional long-body pneumatic cylinder.

SQ retains a compact square-body format while extending the useful stroke range, making it suitable for fixture movement, component transfer, clamping, positioning and machine mechanisms where both installation length and travel need to be considered.

EMC SQ Technical Specification

Manufacturer	EMC
Series	SQ
Product Category	Compact pneumatic cylinders
Construction	Square-profile compact body
Operation	Double acting
Current Cylinder Warehouse Bore Sizes	25, 32, 40, 50, 63, 80 and 100 mm
Current Standard	Manufacturer compact-cylinder format — not presented by EMC as an ISO 21287 range
Position Detection	Magnetic piston on documented SQ configurations
Body Material	Anodised aluminium
Piston Rod	Hard-chrome-plated steel
Seal Material	NBR
Maximum Operating Pressure	10 bar
Documented Temperature Range	-10°C to +60°C
Current Product Suffix	SZ on the Cylinder Warehouse SQ range

25 to 100 mm Bore SQ Pneumatic Cylinders

The current Cylinder Warehouse SQ catalogue provides seven useful bore sizes:

25 mm bore pneumatic cylinders — compact machinery and lighter fixture movements.
32 mm bore pneumatic cylinders — general automation, positioning and holding duties.
40 mm bore pneumatic cylinders — medium-force compact machine applications.
50 mm bore pneumatic cylinders — increased force without moving to a larger profile-cylinder format.
63 mm bore pneumatic cylinders — substantial clamping, lifting and positioning force.
80 mm bore pneumatic cylinders — higher-force compact industrial movement.
100 mm bore pneumatic cylinders — the largest SQ size currently represented in Cylinder Warehouse.

Pneumatic Port Sizes Change with Bore

The pneumatic connection increases as the actuator size grows, so the complete EMC part number should be used when replacing an existing SQ pneumatic cylinder.

Bore	Verified Pneumatic Port
25 mm	M5
32 mm	G1/8
40 mm	G1/8
50 mm	G1/4
63 mm	G1/4
80 mm	G3/8
100 mm	G3/8

SQ Stroke Availability

The wider EMC SQ catalogue includes stroke lengths from 5 mm through to 100 mm depending on bore. The current Cylinder Warehouse range includes examples such as SQ 25/40 SZ, SQ 32/45 SZ, SQ 40/70 SZ, SQ 50/60 SZ, SQ 63/80 SZ, SQ 80/80 SZ and SQ 100/90 SZ.

This spread is what makes SQ particularly useful: it provides compact construction without limiting the machine designer to only very short movements.

Magnetic Position Sensing

Documented EMC SQ pneumatic cylinders use a magnetic piston, allowing compatible cylinder switches to provide non-contact position feedback.

This means a compact SQ actuator can be integrated into automated machinery where the PLC needs confirmation of extension or retraction before the next stage of the process begins.

Anodised Aluminium Square Body

SQ uses an anodised aluminium compact body with a hard-chrome-plated steel piston rod and NBR sealing.

The square body shape also provides multiple surfaces around the actuator for installation and sensor positioning, helping the pneumatic cylinder fit cleanly into tightly packaged fixtures and machine frames.

SQ or SFS?

EMC Series	Format	Primary Buying Reason
SQ	EMC compact square-body format	Compact installation with the SQ mechanical format and extended stroke choice
SFS	ISO 21287 compact format	Standardised ISO 21287 dimensions are required

SQ should not be described as ISO 21287 simply because both ranges are compact pneumatic cylinders. EMC's SFS range is the dedicated ISO 21287 family; SQ uses its own compact-cylinder geometry.

SQ or SQN?

EMC SQN belongs to the same wider compact-cylinder family, but EMC identifies SQ separately as its long-stroke type.

For exact replacement work, use the series printed on the existing pneumatic cylinder rather than assuming SQ and SQN are interchangeable because their appearance and bore sizes may overlap.

Examples from the Cylinder Warehouse SQ Range

Example MPN	Bore	Stroke	Port
SQ 25/45 SZ	25 mm	45 mm	M5
SQ 32/45 SZ	32 mm	45 mm	G1/8
SQ 40/70 SZ	40 mm	70 mm	G1/8
SQ 50/60 SZ	50 mm	60 mm	G1/4
SQ 63/80 SZ	63 mm	80 mm	G1/4
SQ 80/80 SZ	80 mm	80 mm	G3/8
SQ 100/90 SZ	100 mm	90 mm	G3/8

Replacing an Existing EMC SQ Pneumatic Cylinder

Use the complete manufacturer part number wherever possible. A marking such as SQ 63/80 SZ identifies the series, 63 mm bore and 80 mm stroke, while the SQ body format determines the surrounding mechanical dimensions.

Do not replace an SQ purely from bore and stroke. Check the mounting arrangement, pneumatic port, piston-rod connection and available machine space before changing series or manufacturer.

If the exact SQ cannot be supplied, start with the compact pneumatic cylinder range and compare the complete mechanical specification before choosing an alternative.

EMC SQ Selection Questions

Is EMC SQ an ISO 21287 pneumatic cylinder?

No ISO 21287 designation is confirmed for the SQ products in the current Cylinder Warehouse data. EMC lists SQ separately as a compact-cylinder family, while the EMC SFS range is the dedicated ISO 21287 platform.

Is EMC SQ double acting?

Yes. The SQ products currently stocked in the Cylinder Warehouse catalogue are double acting.

Why does EMC describe SQ as a long-stroke compact cylinder?

The range retains a compact square-body design while supporting a broader choice of stroke lengths, including configurations up to 100 mm in the documented catalogue.

Is SQ magnetic?

Yes on documented standard SQ configurations, allowing suitable cylinder switches to provide non-contact piston position sensing.

What materials are used?

The verified standard construction uses an anodised aluminium body, hard-chrome-plated steel piston rod and NBR seals.

What is the largest SQ bore in Cylinder Warehouse?

The current range extends to 100 mm bore.

Should I replace SQ with SQN if the bore and stroke match?

Not automatically. They are separate EMC series and their exact mechanical dimensions and configuration should be compared before substitution.

Where can I compare EMC compact pneumatic cylinders?

Compare EMC SQN, EMC SFS, browse all EMC pneumatic cylinders, or view the wider compact pneumatic cylinder range.

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21 pneumatic cylinder products in this range.

EMC
SQ 63/35 SZ
63mm bore x 35mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 63/35 SZ

£82.80 EX VAT

£99.36 INC VAT

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EMC
SQ 63/90 SZ
63mm bore x 90mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 63/90 SZ

£109.61 EX VAT

£131.53 INC VAT

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EMC
SQ 63/80 SZ
63mm bore x 80mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 63/80 SZ

£109.61 EX VAT

£131.53 INC VAT

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EMC
SQ 32/45 SZ
32mm bore x 45mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 32/45 SZ

£42.83 EX VAT

£51.40 INC VAT

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EMC
SQ 32/40 SZ
32mm bore x 40mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 32/40 SZ

£41.10 EX VAT

£49.32 INC VAT

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EMC
SQ 25/45 SZ
25mm bore x 45mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 25/45 SZ

£34.74 EX VAT

£41.69 INC VAT

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EMC
SQ 25/40 SZ
25mm bore x 40mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 25/40 SZ

£33.56 EX VAT

£40.27 INC VAT

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EMC
SQ 80/25 SZ
80mm bore x 25mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 80/25 SZ

£103.43 EX VAT

£124.12 INC VAT

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EMC
SQ 80/15 SZ
80mm bore x 15mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 80/15 SZ

£99.36 EX VAT

£119.23 INC VAT

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EMC
SQ 80/80 SZ
80mm bore x 80mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 80/80 SZ

£130.83 EX VAT

£157.00 INC VAT

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EMC
SQ 80/70 SZ
80mm bore x 70mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 80/70 SZ

£117.93 EX VAT

£141.52 INC VAT

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EMC
SQ 80/5 SZ
80mm bore x 5mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 80/5 SZ

£97.13 EX VAT

£116.56 INC VAT

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EMC
SQ 80/10 SZ
80mm bore x 10mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 80/10 SZ

£97.13 EX VAT

£116.56 INC VAT

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EMC
SQ 50/35 SZ
50mm bore x 35mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 50/35 SZ

£59.69 EX VAT

£71.63 INC VAT

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EMC
SQ 50/60 SZ
50mm bore x 60mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 50/60 SZ

£67.05 EX VAT

£80.46 INC VAT

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EMC
SQ 40/70 SZ
40mm bore x 70mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 40/70 SZ

£56.13 EX VAT

£67.36 INC VAT

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EMC
SQ 100/75 SZ
100mm bore x 75mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 100/75 SZ

£160.20 EX VAT

£192.24 INC VAT

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EMC
SQ 100/35 SZ
100mm bore x 35mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 100/35 SZ

£141.75 EX VAT

£170.10 INC VAT

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EMC
SQ 100/90 SZ
100mm bore x 90mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 100/90 SZ

£174.71 EX VAT

£209.65 INC VAT

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EMC
SQ 100/80 SZ
100mm bore x 80mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 100/80 SZ

£173.13 EX VAT

£207.76 INC VAT

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EMC
SQ 100/30 SZ
100mm bore x 30mm stroke
Compact Pneumatic Cylinder
Manufacturer Part Number SQ 100/30 SZ

£134.36 EX VAT

£161.23 INC VAT

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