DL422i – DCS

Sandvik DL422i is a fully automated, top hammer longhole drill, designed for underground mass mining in 4 x 3.5 meter (H x W) or larger production drifts. It drills vertical and inclined fans and single or parallel longholes up to 54 m in depth.

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Brand	Sandvik

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Perforated Sheets

These sheets are made from solid sheet metal. The holes (meshes) are then produced by material removal processes such as perforation, punching, flame cutting, laser cutting, plasma cutting or waterjet cutting.

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“Limestone and Gypsum” Mineral Processing Plant

SBM Mineral Processing plants for medium-hard stones with a low quartz content are equipped with heavy discharge chutes and reciprocating feeders under the feed hopper.

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FILTER AND SPIN GRIDS
There are two main techniques:

Welded technology

Looped technology

GIRON offers both versions to suit your applications and problems. In both cases, the product flows over a totally smooth surface made possible by the succession of wires. The space between each profile creates a gap, known as an interstice, fissure or slot.

In the welded versionThe wire is manufactured by rolling from round wire. Rolling is the most common process, generating a profile with slightly rounded edges. These profiles are then welded to perpendicularly positioned cross-members.

In the curly versionThe trapezoidal wire was stamped from round wire. GIRON’s contoured fissure grids have been developed for over 50 years. Stamping produces protruding edges for high drainage efficiency. These profiles are then assembled on rounds. At GIRON, the steel round is 7 mm in diameter and the loops have a pitch of 70 mm.

This technique guarantees opening accuracy unsurpassed gap widths, especially for very fine cracks. Grids can be supplied flat or curved, bare or with all types of reinforcement such as flats, angles or other accessories.
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