1. HYDRA-PNEUMATIC HAMMERS

2. Hydra-Pneumatic Hammer 1 Basic working principles of the Hydra- Pneumatic Hammer 2 Technical Characteristics of the Hydra-Pneumatic Hammer 3Hammer construction 4Process of the Conversion from an Air Hammer into a Hydra-Pneumatic Hammer 5 Safety Protection Measures Presentation Sections

3. Hydra-Pneumatic Hammer 1 Basic working principle of Hydra-Pneumatic hammer The basic working principle of Hydra- Pneumatic hammer is energy conversion from pressurized liquid into compressed gas and from potential energy of compressed gas and kinetic energy of falling parts into blow energy. Pressurized oil from the pump and accumulator pushes the piston upward and compresses the nitrogen, when the quick release valve fully opens, high pressure gas pushes the piston down-ward rapidly and accelerates the falling part during working stroke, a hammer blow with stipulated,kinetic energy is formed.

4. 2 Technical characteristics of Hua-an Hydra-Pneumatic hammer ： High instantaneous velocity high blow energy high blow rate high quality of forged piece energy saving more possibility to completing the forging with one heating. Hydra-Pneumatic

5. The hammer is composed of hammer frame,pump station and electronic system 。 Bare hammer Control system 3 Hammer construction Pump Station

6. Hydra-Pneumatic Power head, hammer tup, piston rod, hammer body, tup guides, top pallet, bottom pallet. Power head including the main body, accumulator, buffer cylinder, gas cylinder, piston rod cylinder and bottom gland seal. 1. Hydra-Pneumatic hammer constitution

7. Hydra-Pneumatic Third, unique feature 1.Eletro hydraulic hammer constitution 1 ） Upper tank This is a critical part of the hammer, it connects the hammer legs and holds the main components, comprising of control valve, oil discharge valve and safety valve.

8. Hydra-Pneumatic Third, unique feature 1. Hydra-Pneumatic hammer constitution 2 ） Accumulator (right) It is an indispensable part of the hammer it is divided into an upper gas chamber and a lower oil chamber by a piston. It is used for storing compressed gas and pressurized oil respectively.It provides pressurized oil for the fast movement of the hammer.

9. Hydra-Pneumatic Third, unique feature 1. Hydra-Pneumatic hammer constitution 3 ） Gas cylinder and oil cylinder (left) Oil cylinder having a piston inside is surrounded by a gas cylinder. The space between the two cylinders is filled with compressed nitrogen.The top of gas cylinder is open to the gas cylinder and the lower part of the oil cylinder is filled with pressurized oil.The pressure difference between oil and gas produces the hammer movement.

10. Hydra-Pneumatic Third, unique feature 1. Hydra-Pneumatic hammer constitution 4 ） Buffer cylinder It is a very important part for safety protection and is composed of; a cylinder, piston, cover and spring.There is low pressure nitrogen in the upper cavity. When the piston rod returns to the top of the gas cylinder too fast, its excess kinetic energy is absorbed so avoiding the cylinder cover breaking away and further damage

11. Hydra-Pneumatic Third, unique feature 1. Hydra-Pneumatic hammer constitution 5 ） Main gland seals They are important parts for sealing high pressure oil in the lower chamber of the oil cylinder and positioned at the bottom of upper tank.They are also the guide for piston rod. Seal of “ high-low pressure combination ” and fixation of “ duplex clamping ” have realized dual purpose of safety and reliability.

12. Third, unique feature 1. Hydra-Pneumatic hammer constitution 6 ） Ram piston rod and their connection Ram and piston rod are designed and manufactured according to international standards to assure their strength and rigidity under alternating stress after long term use. The piston rod is reliable for five years under normal conditions. They are connected using a taper for convenient maintenance without damage to the ram. Hydra-Pneumatic

13. Third, unique feature 3. Electrical system characteristic Design purpose of the electronic system is “ reasonable structure and advance performances for stable,reliable running,sensitive control,low failure ， long life ” ， All components are available locally. The electrical system meets all current EU directives. Hydra-Pneumatic

14. Fourth, The conversion process from air to Hydra-Pneumatic The process is that using hydraulic power head substitutes the original air cylinder with the power head, guides, pump station, electronic control system and nitrogen gas system. Hydra-Pneumatic

15. The hydra-Pneumatic hammer is a high speed reciprocation unit that creates intense vibration, for the guaranteed of equipment under normal operation and man-machine security, we adopted a "quality first, safety first" principle, we have successfully developed many protective measures within the control system Fifth, Hydra-Pneumatic hammer safety systems Hydra-Pneumatic

16. Hydra-Pneumatic hammer safety technology introduction 1.Oil temperature over temperature with automatic cooling 2.Oil level monitoring automatic system shut down; 3.Filter blockage system; All pumps are automatically monitored; 4.Pressure test automatic monitoring system; 5.Main gland seal leakage monitoring system; 6.Pipeline bursts protection system; 7.Hammer piston rod monitoring protection system. Hydra-hydraulic hammer safety measures

17. Damping Cylinder Hydraulic Cylinder Electric Control Main Tank Bottom Gland seal Connecting Bolts Tup Slides High Pressure Gas Pipe Accumulator Main Operating Valve Quick Release Valve Oil Supply Pipe Oil Return Pipe Piston Rod Tup Operating Lever 5 Ton Arch Hammer Conversion

18. Rigby Hammer Cylinder Air Ports Piston Piston Rod Hammer head Upper Anvil Damping Cylinder Composed Cylinder Electrical control Main Tank Ram seal Ram Guides High Pressure Gas Pipe Accumulator Main Control Valve Oil Supply Pipe Oil Return Pipe Quick Release Valve Piston Rod Hammer Head Operating lever

19. Piston And Cushion System

20. Piston Gland

21. Hydra-pneumatic hammer Third, unique feature 2. Hydraulic pressure station characteristics Hydraulic station is a pressurized oil supply system for the storing and releasing high pressure oil. It includes oil tank, motor, Hydraulic pump, Hydraulic valve, refrigerator, Hydraulic oil, system of gas storage. The design purpose is “ reasonable structure and advance performances for stable and reliable running

22. Hydraulic Schematic

23. Hydraulic pump station Oil Level And Thermometer Motor Bracket Motor Hydraulic Pump Plate type Strainer Oil Tank High pressure feed pipe Electric heater High Pressure Oil Pipe Oil Return Port Unloading valve Pressure Gauge Pressure Switch Oil Suction Filter Hand operated Valve Hydraulic pump Motor And Coupling

24. List of replaced and increased parts for conversion of 1.5t hammer PartsName Type and size We ight (kg) Quantity Spare notes 1 Cylinder sleeve DY2-1-073551 2 Damping cylinder DY2-1-081661 3AccumulatorXNQ-002601 4 Main tank DY27001 5 Falling blow system DY2-1-0215401 6 Underneath seal DY2-1-04701 7GuidesDY2-1-03-201302 Tapered adjusting plate DY2-1-03-19252 8bracketDY2-1-03-0320001 9 Connecting bolt DY2-1-03-0636 10 Cushion valve HCF20-00171 11 Main operating valve ZCF-001101 12 Quick release valve KFF-00201 13 Hydraulic station 32001 14 Distribution box 200 1 15 Operation board 1 Rigby Hammer New or Upgraded Components

25. Arch Hammer Replaced Or Upgraded Parts PartsName Type and size We ight (Kg) Quantity Spare notes 1 Cylinder sleeve SDY5-01-12-009001 2 Damping cylinder MDY5-01-08-001251 3AccumulatorXNQ-007251 4 Main tank SDY5-01-11-0029301 5 Main Ram SDY5-01-09-0051001 6 Underneath seal MDY5-01-14-00921 7GuidesSDY5-01-154752 8 Connection plate SDY5-01-1029001 9 Connecting bolt SDY5-05-11-00308 10 Cushion valve MDY5-01-15-00171 11 Main operating valve ZCF-B-001211 12 Quick release valve KFF-B-00231 13 Hydraulic station 84001 14 Distribution box 400 1 15 Operation board 1