KJF CWS Work Support, Hydraulic (Built-In and Flange Types)

Low-pressure hydraulic work support that advances its plunger to the workpiece by spring or hydraulic pressure and locks it to prevent chatter and deformation under cutting load.

Key features

Prevents chatter and deformation during machining and extends tool life
Strong support force; gas-nitrided surface
Spring-advance or hydraulic-advance operation; high or low plunger spring force
Built-in (threaded) type and flange gasket type with air purge function
Keep the air vent open to atmosphere and protected from foreign matter; use a separate circuit from the clamp cylinders
Install a meter-in speed control valve for hydraulic-advance types

Specifications

Fluid	Hydraulic oil
Operating pressure	25-70 kgf/cm²
Operating temperature	0-70 °C
Body tightening torque	CWS-1208x: 510 kgf·cm (50 N·m); CWS-1508x: 612 kgf·cm (60 N·m)

KJF CWS Work Support, Hydraulic (Built-In and Flange Types)

CWS-12081-H		Mounting: Built-in \| Operation: Spring advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.3-0.5 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.5 cm³ \| Weight: 0.28 kg
CWS-12081-L		Mounting: Built-in \| Operation: Spring advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.2-0.4 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.5 cm³ \| Weight: 0.28 kg
CWS-12082-H		Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.3-0.5 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.9 cm³ \| Weight: 0.27 kg
CWS-12082-L		Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.2-0.4 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.9 cm³ \| Weight: 0.27 kg
CWS-15081-H		Mounting: Built-in \| Operation: Spring advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.65-1.08 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 0.6 cm³ \| Weight: 0.38 kg
CWS-15081-L		Mounting: Built-in \| Operation: Spring advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.48-0.88 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 0.6 cm³ \| Weight: 0.38 kg
CWS-15082-H		Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.65-1.08 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 1.3 cm³ \| Weight: 0.37 kg
CWS-15082-L		Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.48-0.88 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 1.3 cm³ \| Weight: 0.37 kg
CWS-20121FG-H		Mounting: Flange, gasket \| Operation: Spring advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: high, 1.49-2.45 kgf \| Oil capacity: 2.0 cm³ \| Weight: 1.34 kg
CWS-20121FG-L		Mounting: Flange, gasket \| Operation: Spring advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: low, 0.88-1.60 kgf \| Oil capacity: 2.0 cm³ \| Weight: 1.34 kg
CWS-20122FG-H		Mounting: Flange, gasket \| Operation: Hydraulic advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: high, 1.49-2.45 kgf \| Oil capacity: 3.3 cm³ \| Weight: 1.30 kg
CWS-20122FG-L		Mounting: Flange, gasket \| Operation: Hydraulic advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: low, 0.88-1.60 kgf \| Oil capacity: 3.3 cm³ \| Weight: 1.30 kg

Work SupportsKJF

12 product codes available in this family

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KJF CWS Work Support, Hydraulic (Built-In and Flange Types)

Brand KJF·Work Supports

Available part numbers (12)

CWS-12081-H, CWS-12081-L, CWS-12082-H, CWS-12082-L, CWS-15081-H, CWS-15081-L, CWS-15082-H, CWS-15082-L, CWS-20121FG-H, CWS-20121FG-L + 2 more — see full table ↓

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Product codes & specifications

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	Product code	Spec
	CWS-12081-H	Mounting: Built-in \| Operation: Spring advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.3-0.5 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.5 cm³ \| Weight: 0.28 kg
	CWS-12081-L	Mounting: Built-in \| Operation: Spring advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.2-0.4 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.5 cm³ \| Weight: 0.28 kg
	CWS-12082-H	Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.3-0.5 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.9 cm³ \| Weight: 0.27 kg
	CWS-12082-L	Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 285 kgf at 70 kgf/cm² \| Plunger diameter: Ø12 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.2-0.4 kgf \| Body thread: M30 x 1.5 \| Oil capacity: 0.9 cm³ \| Weight: 0.27 kg
	CWS-15081-H	Mounting: Built-in \| Operation: Spring advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.65-1.08 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 0.6 cm³ \| Weight: 0.38 kg
	CWS-15081-L	Mounting: Built-in \| Operation: Spring advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.48-0.88 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 0.6 cm³ \| Weight: 0.38 kg
	CWS-15082-H	Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: high, 0.65-1.08 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 1.3 cm³ \| Weight: 0.37 kg
	CWS-15082-L	Mounting: Built-in \| Operation: Hydraulic advance \| Support force: 392 kgf at 70 kgf/cm² \| Plunger diameter: Ø15 mm \| Plunger stroke: 8 mm \| Plunger spring: low, 0.48-0.88 kgf \| Body thread: M36 x 1.5 \| Oil capacity: 1.3 cm³ \| Weight: 0.37 kg
	CWS-20121FG-H	Mounting: Flange, gasket \| Operation: Spring advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: high, 1.49-2.45 kgf \| Oil capacity: 2.0 cm³ \| Weight: 1.34 kg
	CWS-20121FG-L	Mounting: Flange, gasket \| Operation: Spring advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: low, 0.88-1.60 kgf \| Oil capacity: 2.0 cm³ \| Weight: 1.34 kg
	CWS-20122FG-H	Mounting: Flange, gasket \| Operation: Hydraulic advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: high, 1.49-2.45 kgf \| Oil capacity: 3.3 cm³ \| Weight: 1.30 kg
	CWS-20122FG-L	Mounting: Flange, gasket \| Operation: Hydraulic advance \| Support force: 1106 kgf at 70 kgf/cm² \| Plunger diameter: Ø20 mm \| Plunger stroke: 12 mm \| Plunger spring: low, 0.88-1.60 kgf \| Oil capacity: 3.3 cm³ \| Weight: 1.30 kg

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KJF CWS Work Support, Hydraulic (Built-In and Flange Types)