CJSC “Mining technologies” manufactures a range of custom roller-deck bushings, used to guide and position drill bits. Products comply with the applicable domestic and international standards and regulations, and come with ISO quality management system certification. Orders are delivered worldwide by the freight forwarder selected by the customer.
Technical design features
Bushings for centering (alignment) are of two main types:
- Rollers with bearings within them;
- BHSG bushings (slide bushings) which are manufactured without bearings;
Centering roller bushings are intended to
- Set the correct direction of the drill rod axle
- Minimize loss of torque in the drill rig
- Help prevent drill rod wear
- Optimize the life of roller-cone bits
This table lists alignment bushing size for various drill rig types
|Item||Description||Diameter D/Diameter d/Length L, mm|
|1||Roller-deck bushing DM-45||255/161/252|
|2||Roller-deck bushing D45KS||255/182/300|
|3||Roller-deck bushing PV-271||285/205/252|
|4||Roller-deck bushing PV-275||327/196/215|
Payment and delivery
When arranging the order we conclude the contract for payment and delivery, where we stipulate the following:
- term of the batch manufacture,
- way of delivery
- and issue invoice for payment.
After the funds reach the account, the manufacture is launched and the product batch is manufactured, which is delivered to the customer through the transport company.
The approximate term of manufacture — 30 days, the exact term is defined by the scope and complexity of the order manufacture.
The delivery is executed upon negotiation with the customer. The delivery term is established by the transport company.