Tunneling Blasthole Drilling

Ttelescopic boom and hydraulic drifter, Tunneling section up to 31 square meter, Drilling speed: 0.8-2m/min, Weight: 12t - details see: https://www.machineto.com/tunneling-blasthole-drilling-10319338

Place of Origin:Hebei China (Mainland)	Brand Name:Huatai	Model Number:HT81A	Condition:New
Application:blasthole drilling

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HT81 Hydraulic Drilling Jumbo.

Direct controlled hydraulic tunneling and mining drilling Jumbo equipped with telescopic boom and imported hydraulic drifter for cross sections up to 31 m²

Features

1. The drilling Jumbo adopted a direct controlled drilling system which incorporates excellent anti-jamming function RPCF (Rotation Pressure Controlled Feed force).

2. Hydraulic drifter with large flow, low pressure and modern double reflex dampening giving genuine high speed drilling and excellent drill steel economy.

3. HT series heavy-duty box-type hydraulic feeds with high torsional resistance.

4. Telescopic heavy-duty booms for direct, fast and accurate positioning between holes.

5. Sturdy, articulated carrier with four wheel drive for easy manoeuvring in narrow tunnels and drifts. Four jacks for stable set up. Basic rig includes telescopic FOPS-approved protective roof, cable reel.

Technology Specification

Item	Unit	Specification
Outside dimension(LxWxH)	mm	11210 x 1850 x 2340
Hole depth(feed at once)	mm	3300 /3900
Hole size	mm	φ42 ~φ76 ~φ102
Max. cross section(WxH)	m x m	6.5 x 6
Length of feeder	mm	3700 /4350
Feeder compensation	mm	1250
Electric motor capacity	KW	65
Voltage	V	380
Traveling speed	KM/h	0 ~ 14
Engine	KW	49
Boom raising	°	+65 / -30
Swimming boom	°	35 left and right
Boom compensation	mm	1250
Boom rotation	°	±180
Boom number		1
Drilling speed	m/min	0.8 ~ 2
Impact power	KW	18.8
Max. climb capability		25%( approximately 14 °)
Min turning radius	mm	6000
Stabilization while drilling		by jacks
Total weight	kg	12500