Quick Coupler

Overview

DEVELON Hydraulic Quick Couplers allow you to increase the versatility of your excavators.
QC / QC-II series will help you gain in productivity and efficiency with increased safety.

QC series (Single Locking System)

1

7 different models

5 ~ 52 tons Models are available.

2

Convenience

Helps to change various attachment easily.

3

Robust design

An enhanced welding structure, reducing torsion stress and increasing coupler lifetime.

4

Bucket reversibility

When such reverse shoveling is required.

5

A lifting hook with safety clip

For lifting and carrying materials.

6

Manual safety pin

Prevents unsafe release of attachments.

7

Ease of maintenance

Specifications

Model		QC05	QC14	QC22	QC30	QC34	QC42	QC50
Carrier Model	-	DX55/60	DX140	DX225/255	DX300	DX340	DX420	DX500
Operating weight	kg	69	170	319	584	629	705	888
Length (L)	mm	593	854	1,016	1,178	1,200	1,259	1,335
Height (H)	mm	322	398	509	576	592	619	676
Width (w)	mm	277	422	509	643	649	706	727
Pin to Pin (Li)	mm	260	395	464	515	580	570	600
Working rage (L2)	mm	255~303	380~440	445~514	488~603	539~606	535~604	543~640
Safety pin coverage	mm	255~303	380~440	445~514	488~603	539~606	535~604	543~640
Width (Wi)	mm	155	260	330	395	408	442	470
Diameter	mm	45	65	80	90	100	110	120

QC-II series (Dual Locking System)

1

Versatility

Variable pin center design allows you to easily pick up and swap the widest range of attachments.

Ability to reverse buckets to allow the operator to excavate against walls and under pipes.

2

Productivity

DEVELON couplers can save you 25% of total machine operating time compared to direct mount.

Operator can change attachment from the comfort and security of their cab.

A more compact design means improved tip radius which increases breakout force.

3

Durability

Our simple design has no greasing requirements, less maintenance and replacement parts which guarantee you a hassle free coupler.

Manufactured using extra high strength steel to increase durability while optimizing weight to enhance excavator performance.

4

Safety

Front safety lock is forced on by spring which retains the attachment in case of misconnection.

The rear safety lock is the secondary safety feature backed up by two powerful springs which retains the attachment rear pin in case of cylinder failure.

Powerful spring activated safety locks work in all dirty environments unlike gravity systems.

Specifications

BRACKET VERSION

Unit

XB01

XB02

XB03

XB04

XB05

XB06

Working Weight ¹⁾

106

109

106

109

129

131

161

167

299

361

381

Weight without

100

102

130

135

255

263

283

chisel and Mount cap

Overall Length ²⁾

1,136

1,145

1,136

1,145

1,216

1,270

1,289

1,316

1,630

1,635

1,838

1,850

Required Oil Flow

lpm

15 ~ 25

20 ~ 35

25 ~ 35

30 ~ 50

35 ~ 65

45 ~ 90

Operating Pressure

bar

90 ~ 110

70 ~ 100

90 ~ 110

110 ~ 140

140 ~ 170

Blow

Low speed mode

bpm

N/A

frequency

High speed mode

600 ~ 1,200

700 ~ 1,200

650 ~ 1,100

800 ~ 1,200

500 ~ 1,000

500 ~ 900

Impact

Low speed mode

Joule

N/A

energy

High speed mode

170

190

290

420

680

900

Tool shank diameter

*Applicable

Optimal range

ton

0.7 ~ 1.2

1.0 ~ 2.5

1.5 ~ 3.0

2.5 ~ 4.5

4.0 ~ 6.0

6.0 ~ 8.0

Carrier

Weight

Available range

0.7 ~ 2.5

1.0 ~ 4.0

1.5 ~ 4.5

2.5 ~ 6.0

3.5 ~ 8.0

5.0 ~ 11

1) Total weight including standard tool, standard mounting adapter and spacers but excluding hydraulic hoses, fittings and mounting pins.
2) The length measured from the tool tip of the standard tool to the top of the breaker including mounting adapter.

Quick Coupler

Overview

QC series (Single Locking System)

1

5 ~ 52 tons Models are available.

2

Helps to change various attachment easily.

3

An enhanced welding structure, reducing torsion stress and increasing coupler lifetime.

4

When such reverse shoveling is required.

5

For lifting and carrying materials.

6

Prevents unsafe release of attachments.

7

Specifications

QC-II series (Dual Locking System)

1

Variable pin center design allows you to easily pick up and swap the widest range of attachments.

Ability to reverse buckets to allow the operator to excavate against walls and under pipes.

2

DEVELON couplers can save you 25% of total machine operating time compared to direct mount.

Operator can change attachment from the comfort and security of their cab.

A more compact design means improved tip radius which increases breakout force.

3

Our simple design has no greasing requirements, less maintenance and replacement parts which guarantee you a hassle free coupler.

Manufactured using extra high strength steel to increase durability while optimizing weight to enhance excavator performance.

4

Front safety lock is forced on by spring which retains the attachment in case of misconnection.

The rear safety lock is the secondary safety feature backed up by two powerful springs which retains the attachment rear pin in case of cylinder failure.

Powerful spring activated safety locks work in all dirty environments unlike gravity systems.

Specifications

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