Pneumatic Rotary Roof Bolter with dust suppression system for the roof supporting in underground coal mine

Bolt support: The bolt is anchored into the surrounding rock, so that an integral and stable rock belt is formed around the roadway, so as to achieve roadway support for the purpose of the support and the surrounding rock working together. There are many types of bolts, and there are 4 types and 22 types of bolts according to their structural forms. The commonly used bolts in mines include wedge slot type, expanded shell type inverted wedge type, and point anchor bolts such as resin and cement; full-length bonded cement mortar Anchor rods (including steel wire rope anchor rods); friction type full-length anchor rods such as pipe joint type and expansion pipe type; comprehensive anchor rods such as wedge pipe type, mortar wedge joint type and mortar wedge pipe type. The bolt material can be metal material or bamboo and wood.
Anchor rod installation includes three processes: drilling, installation and injection. (1) Punch eyes. Drill holes with a rock drill or use a special bolting rig. Anchor bolt hole installation machine hole hole. (2) Installation. Different installation methods are used according to the type and material of the bolt. Bamboo and wood bolts are tightened and anchored with air hammers or hand hammers; wedge-slotted metal bolts are anchored with air hammers, torque wrenches, ordinary wrenches or hand hammers; pipe seam bolts are installed with rock drilling, which is pushed into the hole to make a reservation Location; the expandable bolt can be installed with high pressure water expansion pipe. (3) Pay attention. There are two ways of anchoring first and then betting or firstly betting and then anchoring. After the bamboo, wood and metal bolts are installed, the cement mortar is injected with the eye injector and the grouting device. For resin bolts and fast-hardening cement bolts, first send the cement coil or resin coil with the bolt body to the bottom of the hole, and then use a common electric drill with a special drill, torque wrench or common wrench to install the anchor at one time.

Product Description
MQT-130/3.0 Pneumatic Roof Bolter is a rotary roof bolting machine with dust suppression system suitable for drilling vertical holes of 27mm to 43mm diameter & anchoring of roof bolts in underground mines in strata hardness upto 600 kg/cm2. It is a totally indegenous equipment with modular construction consisting of 3 main assemblies- drive unit, telescopic leg & control arm. The machine has all operational controls on the handle of the pivoting arm itself which can be pushed down near the leg where it is automatically locked facilitating easy transportation. During operation it allows total control as well as safety to the driller.

Salient Features

Low noise, silent operation.
Easy maintenance & lowest service cost.
No electric connection required to be taken upto the face.
Water injection system helps in flushing cuttings, dust suppression & faster drilling.
Unique drive head design eliminates thrust load being transferred directly to the motor.
Portable, light in weight, easy to handle, can drill nearest to the face where space is limited.

OEM is acceptable

We can make the design and produce the bolters according to different requirements.