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Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type

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China Changsha Sollroc Engineering Equipments Co., Ltd certification
China Changsha Sollroc Engineering Equipments Co., Ltd certification
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Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type

Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type
Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type

Large Image :  Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type

Product Details:
Place of Origin: China
Brand Name: SOLLROC
Certification: SGS
Model Number: T45, T51
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: 150
Packaging Details: Cartons + ply wood case (no plastic)
Delivery Time: 18-25 working days
Payment Terms: T/T,
Supply Ability: 10000pcs/month

Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type

Description
Material: Alloy Steel Diameter: 102mm
Thread: T45, T51 Color: Red, Black, Or As Request
Package: By Air, By Sea, By Express, Etc Type: Spiral Retrac, Retrac, Regular
High Light:

hard rock tools

,

borehole drilling tools

 

Product Description

 

In Top Hammer Drilling the hammer produces a percussive force on the drill rods or tubes, which is transmitted to the drill bit. The feed device is usually attached with a hinged boom to a mobile unit. The percussive system strikes the drill rod, for example 2,000-5,000 strikes per minute, and the rotation speed can be, for example, 60-200 rounds per minute. Together these elements make it possible to drill holes in the hard rock. The excess material (cuttings) is flushed up from the bottom of the hole by means of pressurized air or water. Top hammer drills are primarily used in mining, construction and quarrying of rock material. Top hammer drilling, combined with the “drill and blast” method, makes the whole excavation process extremely efficient.

 

SOLLROC stocks a comprehensive supply of Tophammer Drilling Tools. Whether you require bits, coupling sleeves, shank adaptors or rods, we have exactly what you need when you need it.

 

 

 

 

Top hammer drilling principle

 

1. When the piston hits the shank, kinetic energy in the piston creates a compressive wave in the string of drilling tools, that will cause the bit to penetrate the rock

2. Piston velocity at impact ≈ 10m/s but the compressive wave in the drill steel travels at a velocity of 5180 m/s (velocity of sound in steel)

3. The bit is forced forward and penetrates the rock around 1.0 mm

4. Part of the energy not used to penetrate the rock goes back as a tensile wave and part of it as a compressive wave

 

 

 

Threaded bits

 

Button bits

Skirt: Straight (Regular skirt), Retrac and Straightrac (Sprial skirt)
Bits diameter 45mm-152mm
Thread R22, R25, R28, R32, R35, R38, T38, T45, T51, T60, ST58,T68
Face design Flat face, drop center, uniform face
Button selection Spherical and ballistic

 

Cross bits and X bits

Skirt: Straight (Regular skirt) and Retrac
Bit diameter 45mm-127mm
Thread R22, R25, R28, R32, R35, R38, T38, T45, T51, T60, ST58,T68

 

 

 

Package and shipping

 

Package: Carton+plywood case, or as request.

Shipping: By air, by sea, be express.

 

 

 

Detailed pictures

 

Rock Bits Diameter 102mm Top Hammer Drilling Tools For Spiral Retrac And Regular Type 0

 

 

Contact Details
Changsha Sollroc Engineering Equipments Co., Ltd

Contact Person: Ms. Ling Bo

Tel: 86-13077353340

Fax: 86-731-85551635

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