Mining bolts
KGHM ZANAM mining bolts are used in roof bolting to ensure roof stability in mine workings of mining plants where non-ferrous metal ore is extracted. Expansion and adhesive mining bolts ensure adequate load-bearing capacity and are an indispensable piece of equipment for roof-bolting trucks.
KGHM ZANAM mining bolts are used in roof bolting to ensure roof stability in mine workings of mining plants where non-ferrous metal ore is extracted. Expansion and adhesive mining bolts ensure adequate load-bearing capacity and are an indispensable piece of equipment for roof-bolting trucks.
Mining bolts are an important part of the KGHM ZANAM S.A. product range. The bolts are divided into two main product groups:
-
expansion bolts – kit comprising: a rod, a head, a washer
-
adhesive bolts – kit comprising: a rod, a nut, a washer
For both product groups, the user can choose the shape and type of the washer. The above roof bolting elements are also available separately, outside of kits.
Bolt rods are available in dimensions between 0.6 and 3.2 m, and their diameter is 18 mm.
Manufactured roofing bolts are used primarily for roof dressing in underground mines; shorter roofing bolts are used as auxiliary elements in transport tunnels.
Custom product modifications within a prototype product process are also possible.
Basic bolt parameters:
|
|
Head diameter |
Bolt rod diameter |
Thread diameter |
Threaded part length |
Bolt rod length [mm] |
Working load capacity of the bolt at pull-out of up to 10 mm |
|
Jaw expansion bolts |
Ø36±1 |
Ø18 |
M 20 |
100/170 |
600÷3000 |
100 |
|
Sleeve expansion bolts |
Ø25±0,3 |
Ø18 |
M 18 |
65/65 |
600÷3000 |
100 |
|
Adhesive bolts |
– |
Ø18 |
M 20 |
150 |
640÷3270 |
100 |
