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HL820ST Rock Drills DL311 OMT200 Top Hammer Drilling
HL820ST Rock Drills DL311 OMT200 Top Hammer Drilling
Specifications
Model Number :
HL820ST
MOQ :
1PCS
Price :
Price negotiations
Payment Terms :
T/T
Supply Ability :
1+PCS+20 work days
Delivery Time :
20 work days
Packaging Details :
wooden box package
Hole diameter range :
54 - 89 mm
Kinetic power :
21 kW
Percussion rate :
42 - 53 Hz
Operating pressure Percussion Rotation :
80 - 200 bar Up to 200 bar
Stabilizer :
Sleeve type
Rotation motor type :
OMT200 / 250
Description

HL820ST is a hydraulic top hammer rock drill, specially designed for DL311 and DL321 underground deep hole drill

Product feature of Rock Drills

HL820ST hydraulic rock drill is designed to ensure high drilling capacity, easy maintenance and low operating cost. The construction of the rock drill is based on the main body modules tied together with four short side bolts; this ensures a minimum number of joint faces and large contact surfaces. The percussion module is simple in design and consists of only two moving parts – the piston and the distributor sleeve around the piston and the moving parts are not in contact with the rock drill body modules.

HL820ST is fitted with a drill stabilizer, which is designed to adjust percussion power according to variations in rock conditions which ensures good rock/bit contact and energy transfer, high penetration rate and rock tool service life.

There are two rotation motor variants to meet the rotation torque and RPM requirements of different hole diameters and rock formations. The optional power extractor is used for opening rock tool joints manually or automatically when using one-hole or fan automation and the design of the HL820ST is covered by several patents.

Product data of Rock Drills

Technical data
Hole diameter range 54 - 89 mm
Kinetic power 21 kW
Percussion rate 42 - 53 Hz
Operating pressure
Percussion
Rotation		 80 - 200 bar
Up to 200 bar
Rotation motor type OMT200 / 250
Stabilizer Sleeve type
Shank length 600 mm

Rock tools and hole diameters
Thread Rod mm Hole mm
T35 39 54 - 57
T38 39 64
T45 46 76
T45 65 (tube) 76 - 89
T51 52 89

HL820ST Rock Drills DL311 OMT200 Top Hammer Drilling

Product tags

yn27c rock drill

,

hitachi impact drill

,

hitachi sds hammer drill
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HL820ST Rock Drills DL311 OMT200 Top Hammer Drilling

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Product Detail
Model Number :
HL820ST
MOQ :
1PCS
Price :
Price negotiations
Payment Terms :
T/T
Supply Ability :
1+PCS+20 work days
Delivery Time :
20 work days
Contact Supplier
HL820ST Rock Drills DL311 OMT200 Top Hammer Drilling

Xi'an Huizhong Mechanical Equipment Co., Ltd.

Verified Supplier
4 Years
Shaanxi
Since 2016
Business Type :
Distributor/Wholesaler, Agent, Importer, Exporter, Trading Company
Main Products :
Rock Drill Parts, Rock Drilling Bits, Rock Drilling Rod
Total Annual :
3870000-4644000
Employee Number :
10~99
Certification Level :
Verified Supplier
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