Breakers JTHB

HY

DR

AULIC B

REA

KER

S

JTHBSERIES

BREAKERSfrom 75 to 5.220 kg

FOR MACHINE CLASSESfrom 0,7 to 70 tonnes

JTHB

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H Y D R A U L I C B R E A K E R S

Benefi ts Features

High impact energy and productivity

• Dual power source combines hydraulic and gas

energy

• Recoil energy is absorbed and recycled for the

next blow

Reduced operating costs and maintenance

• Up to 30% fewer parts

• More durable components

• No rubber bladder-type accumulator

Maximum reliability• Only 2 moving parts (piston and control valve)

• Built-in dust protection system

Less vibration and noise

• Short tie rods with vibration-reducing vulcanised

rubber sleeves

• Protected threads

Less stress on the machine and operator• Gas cushion absorbs piston recoil to reduce

vibration

Extended lifetime • Automatic greasing system (option)

Versatility• Extensive range of breaker tools

• Kits for special applications

Environmentally friendly • Noise-reducing breaker brackets

Reduced downtime• Fast service and repair through Komatsu’s world-

wide network

Fits any excavator • Low sensitivity to back pressures

Safe investment • Komatsu is a stable and reliable partner

JTHB SERIES

Komatsu’s JTHB breakers deliver exceptional impact energy, long lifetimes and low operating costs.

What’s more, they minimise operator fatigue and environmental impact. These unique benefits are all

due to an innovative blend of a simple yet efficient design and advanced ‘accumulator-free’ technology.

With a complete range of 15 breakers all based on the same design philosophy, JTHB breakers are ideal

for applications from construction and demolition to recycling, mining and quarrying.

Innovative features, real benefits

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HYDRAULIC BREAKERSJTHB

Large piston mass and support area

for optimal piston alignment,

energy transfer and efficiency

Simple control valve

minimises oil flow interruptions

and hydraulic pulsations

Provision for underwater kit

included as standard

50/50 piston-tool weight ratio

for greater energy transfer and

less recoil

Dual retainer pins

ensure correct alignment

and easy replacement of tool

Specially hardened alloy

increases durability and range of

applications

Nitrogen gas cuhion

absorbs piston recoil and

recycles the energy for

the next blow

Optional auto-grease system

cuts service time and requires

no external power source

Short tie rods

with protected threads

boost lifetime and

reliability

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ALL 15 MODELS LINE UP

0,5 m

1 m

1,5 m

Mini range

Medium range

Large range

SPECIFICATIONS

JTHB08 JTHB10 JTHB20 JTHB30 JTHB40 JTHB50

JTHB60 JTHB65 JTHB70 JTHB100 JTHB150

MODEL JTHB08 JTHB10 JTHB20 JTHB30 JTHB40 JTHB50

Operating weight

2-piece type kg 75 100 140 200 280 345

Box type kg 85 120 160 240 335 400

Tool length mm 450 470 495 590 640 710

Tool diameter mm 40 45 50 58 64 75

Oil flow l/min 18-25 20-30 20-35 25-45 30-55 35-60

Operating pressure Mpa 6-13 7-14 8-15 10-15 10-16 10-16

Impact rate bpm 930-1300 700-1200 600-1150 550-1000 580-1060 550-1000

Hose size inch 3/8 1/2 1/2 1/2 1/2 1/2

Gas pressure Mpa 0.8 0.8 0.8 0.8 0.8 0.8

Base machine weight range ton 0.7-1.5 1-2 1.5-2.5 2.4-4 3-4.5 3.8-6

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0,5 m

1 m

1,5 m

2 m

2.5 m

3 m

With a range of 15 breakers from 75

to 5.000 kg (for machines from 0,7 to

70 tonnes), you’re guaranteed to find

the right tool for the job.

JTHB190 JTHB230 JTHB310 JTHB400

JTHB60 JTHB65 JTHB70 JTHB100 JTHB150 JTHB190 JTHB230 JTHB310 JTHB400

490 636 1000 1155 1920 2140 2690 3560 5220

580 770 1100 1205 2010 2220 2640 3540 5010

800 800 930 930 1170 1180 1180 1360 1540

95 95 115 115 135 140 146 160 178

45-80 70-100 70-110 100-140 160-200 160-210 180-230 240-300 280-390

10-16 11-17 12-17 14-18 14-18 14-18 13-18 14-18 14-18

550-1000 600-900 450-700 430-600 490-630 370-490 380-450 370-470 370-470

3/4 3/4 3/4 1 1 1 1 1-1/4 1-1/4

0.8 0.8 0.8 0.8 1.1 0.8 0.8 0.8 0.8

5.5-8 7-12 8-15 14-20 18-25 20-30 27-40 38-50 45-70

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BRACKET TYPE

2 PC type Box type (silenced)

* Japanese-sourced machine models

The above table is for quick reference only.

Please contact your local distributor for a detailed matching table showing the best breaker for your exact machine specifi cations and breaker connection type.

Machine-breaker quick matching table

MODEL JTHB08 JTHB10 JTHB20 JTHB30 JTHB40 JTHB50 JTHB60

Machine weight (ton) 0,7 - 1,5 1 - 2 1,5 - 2,5 2,4 - 4 3 - 4,5 3,8 - 6 5,5 - 8

PC09-1 PC18MR-2 PC27MR-2 PC35MR-2 PC50MR-2 PC75R-2 PC78MR-6

PC12R-8 PC20MR-2 PC30MR-2 SK1020-5 WB91R-5 WB93R/S-5 PC88MR-6

PC14R-2 SK714-5 SK1026-5 WB97R/S-5 PW98MR-6

PC15R-8 SK715-5 CK30-1 PW110R-1

PC16R-2 SK818-5 CK35-1

SK820-5

CK20-1

CK25-1

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TYPE PURPOSE & APPLICATION SHAPE

Moil point General demolition - Penetration breaking

e.g. concrete, rock bed, …

Flat General demolition trough cutting action - Penetration breakinge.g. trenching and slope finishing

Flat end Demolition - Impact breaking

e.g. secondary rock breaking, scaling in mines and tunnels,

reinforced concrete fl oors, …

Power point Demolition - Penetration breaking

e.g. very hard and abrasive conditions

TOOL SELECTION

Correct selection of tools is the first step to obtaining maximum life from the product

Extra-long and special-application tools are available on request

fX fY

JTHB65 JTHB70 JTHB100 JTHB150 JTHB190 JTHB230 JTHB310 JTHB400

7 - 12 8 - 15 14 - 20 18 - 25 20 - 30 27 - 40 38 - 50 45 - 70

PC110R-1 PC130-7 PC160-7 PC200-8* PC220-8* PC300-8* PC400-8* PC600-8

PC138US-2 PC180-7 PC210-8 PC240-8 PC340-8* PC450-8

PW140-7 PW160-7 PC230NHD-8 PC270-8* PC350-8

PW180-7 PC228US-3 PC290-8

PW200-7

PW220-7

Materials and specifi cations are subject to change without notice.

is a trademark of Komatsu Ltd. Japan.

Komatsu EuropeInternational NVMechelsesteenweg 586B-1800 VILVOORDE (BELGIUM)Tel. +32-2-255 24 11Fax +32-2-252 19 81www.komatsu.eu

HYDRAULIC BREAKERS

Auto grease system

FESS000100 02/2008

Printed in Europe – This specifi cation sheet may contain attachments and optional equipment that are not available in your area.Please consult your local Komatsu distributor for those items you may require. Materials and specifi cations are subject to change without notice.

Underwater use

JTHB

Komatsu - your one-stop shop for hydraulic breakers and accessories

Call the experts©

Other special application kits

An optional auto grease system eliminates the need for manual interventions.

By greasing the breaker at fixed intervals and with an adjustable output, the system

improves ease-of-use and extends the lifetime of your breaker and wear parts.

Available on the JTHB40 and larger breakers, it is fully incorporated into the bracket

and doesn’t require an external power source.

JTHB breakers can be quickly and easily adapted for underwater use through the

optional underwater kit. Compressed air is supplied through the air port on the

breaker’s body (included as standard across the range), preventing water from

entering the breaker.

A number of kits are available for special applications such as:

• Extreme-temperature environments (hot or cold)

• Extremely dusty environments

• Tunnel works

Contact your local distributor for more details.

Documents

Breakers JTHB