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Komatsu Hydraulic Breakers Komatsu Middle East Parts Depot Slide 2 KME Parts Depot Constructions Mines Quarries Utility,inside cities Applications Hydraulic breakers Slide 3 KME Parts Depot Which needs is a customer hammering into OUR head ? High Impact Energy Hydraulic breakers Low running costs Ecological Reliability & Durability One Face support Solution Slide 4 KME Parts Depot Less lost energy transfer by Same diameter (weight), piston & chisel Long piston (stroke) hydr. energy gas energy same diameter Dual power sourceDual power source, hydraulic and gas Long piston (stroke) YES, Komatsu has it ! High impact Energy Slide 5 KME Parts Depot Reliability & Durability A unique and simple design leads to: Fewer parts item, approx. 30% less Only 2 moving parts No internal accumulator ! Effect of gas cushion Effect of unique side bolts Effect of dust preventer Low running cost YES, Komatsu has it ! Slide 6 KME Parts Depot Effect of Unique Simple Structure 30% fewer parts than most other hammers Reduce large volume of inventory parts for DB and end users Reduce cost of repair and reassemble Only Two Moving Parts 1. Control valve - Moves to change oil flow direction 2. Piston - Moves up and down in cylinder - Length ensures positive alignment with tool Control Valve Piston Slide 7 KME Parts Depot Effect of unique side bolts Side Bolts (4) Cylinder cover Cylinder Chisel holder Rubber Cushion Helisert Side Bolt Nut Side Bolt Ring Side Bolt Nut`Competitor Slide 8 KME Parts Depot Unique side bolts (Detail) Small differences ? big results ! Slide 9 KME Parts Depot Piston Chisel Air Air Intake Valve Effect of dust preventer (same as others) P P atm P Slide 10 KME Parts Depot Effect of gas cushion (Same as others) Hydraulic Cushioning Orifice on return side provides good hydraulic cushioning Protecting carriers hydraulic system from pulse Reducing the frequency of maintenance of Hyd hammer Hydraulic Cushion Slide 11 KME Parts Depot Effect of Nitrogen Cushion Chamber (Unique) Absorbing recoil energy of piston filled at Komatsu pressure Reducing shock waves to carrier Reducing stress on seals by low gas pressure Easier maintenance compare to high/ low pressure chamber N2 Gas Chamber Slide 12 KME Parts Depot Hydraulic Breaker Trend 1 st generation - Mechanical Spring Type (disappear) 2 nd generation - Hyd & Gas system with Accumulator (still Common) 3 rd generation - Hyd & Gas system without Accumulator (Most recent) Slide 13 KME Parts Depot Mechanical Spring type Steel spring installed in cylinder cover Short life tried many kinds of spring Tried air spring type also First generation Slide 14 KME Parts Depot Second generation Accumulator type Accumulator installed Filled Cushion gas in cylinder cover Additional bush and seals Slide 15 KME Parts Depot Second generation Accumulator type: advantages Pulse absorbed by diaphragm Low cushion gas ( Impact energy generated by hyd pressure) Impact energy directly affected by oil flow Accumulator type: disadvantages Increasing number of consumable parts Life of consumable parts Low impact energy when diaphragm broken Maintenance of accumulator (Cause of closedown) Accumulator easy damage due to pump performance improved (improper oil flow adjustment) Slide 16 KME Parts Depot Third generation Non-Accumulator type Eliminate accumulator to lower the failure rate Decrease number of components Easy maintenance Slide 17 KME Parts Depot Third generation, Non-Accumulator type Difficult points for development of Non-Accumulator type A. How to Reduce the Pulse Restriction in IN and OUT circuit Accumulation of KNOW-HOW for degree of restriction Limit pressure fluctuation by change of piston stroke & large Dia dimension B. Holding Impact Energy Adjustment of cushion gas redesign hyd circuit (improve efficiency) C. Impact Efficiency How to harness pressure energy efficiently under gas pressure from 3.5 to 8- 10kg/ Adjustment of piston Dia Slide 18 KME Parts Depot Rammer Montabert - Furukawa Krupp/Atlas NPK Competition Slide 19 KME Parts Depot Type of Hammer Gas Only: NPK High Cushion Gas Pressure High Recoil (High Vibration Value) complicate to Refill Cushion Gas Hydraulic + Gas: Komatsu, Krupp, Okada, Furukawa Non Accumulator (Komatsu) Easy to Refill Cushion Gas Low Gas Pressure Fewer Component Parts Hydraulic Only: Montabert, Indeco Need Big Accumulator Impact Energy affected by PxQ directly Low Recoil Slide 20 KME Parts Depot Competitors NPK Manufactured in Japan Installing Accumulator on carrier required at customers expense Replacing a sleeve in a cylinder required High Cushion Gas Pressure ( 2.4 ~ 2.7 Mpa) 100% reply on Gas Pressure ( Hammer doesnt work without gas pressure. Komatsu hammers run at half power without gas pressure.) Krupp Manufactured in Germany Accumulator installed on Hammer Montabert Manufactured in France Market confused by Ingersoll Rand acquisition Expensive component parts Use big accumulator Two speed as option (Called as Thinking Hammer), almost no need Slide 21 KME Parts Depot Competitors Furukawa Manufactured in Japan Use Accumulator Expensive component parts Rammer Manufactured in Finland Complex structure and many moving components Use Accumulator Absorbing recoil energy by using springs & rubber buffer pad Body swings in housing (Loss of energy and high wear) Indeco Manufactured in Italy Low Unit Price Known to have tool ( Chisel ) problems Expensive component parts Similar to Montabert Design Slide 22 KME Parts Depot Competitors Slide 23 PC200 C onstruction I ndustry M anufacturers A ssociation Slide 24 KME Parts Depot PC200/220 CIMA Slide 25 KME Parts Depot Product range Introduced in Middle East Slide 26 KME Parts Depot Jordan PC350 / JTHB230 Slide 27 KME Parts Depot Ireland Mc Hale PC150 / JTHB100 Slide 28 KME Parts Depot Ireland Mc Hale PC150 / JTHB100 Slide 29 KME Parts Depot Bosnia Herzegovina TEIKOM PC450 / JTHB65 Slide 30 KME Parts Depot Finland SRO PC27MR / JTHB30 Slide 31 KME Parts Depot Finland SRO PC228 / JTHB150 Slide 32 KME Parts Depot Ireland Mc Candless PC210 / JTHB190 Slide 33 KME Parts Depot Funzi Keys Kenya PC200 / JTHB150 Slide 34 KME Parts Depot Sweden Swelog PC340 / JTHB310 Slide 35 KME Parts Depot Croatia TEIKOM PC450 / JTHB310 Slide 36 KME Parts Depot Croatia TEIKOM PC340 / JTHB310 Slide 37 KME Parts Depot Iceland Kraftvelar PC340 / JTHB310 Slide 38 KME Parts Depot Germany GP Baumaschinen PC450 / JTHB310 Slide 39 KME Parts Depot Germany GP Baumaschinen PC450 / JTHB310 Slide 40 KME Parts Depot High Impact Energy Low running costs Ecological Reliability & Durability => Dual Power source => Simple & efficient design => Built on experience => No internal accumulator ! Back Pressure resistant => Fits on any excavator Remember Thank you for your interest in this great product !