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Quarry & Aggregate Drilling Solution

Medium-depth blasting in stone pits and cement mines at Φ90–Φ140 mm, where metres per shift and tool life drive cost.

Scope of work

Holes mostly Φ90–Φ140 mm, 6–15 m deep, multi-row millisecond delay blasting
Long running hours and frequent bit changes demand steady spares supply and controlled pricing
Mainly limestone and granite with medium-to-high abrasiveness

Selected by hole size and duty — not the whole range

Φ82mm · hole Φ90-115mm · 24.2kg

Economical choice for small holes — Φ82 mm OD for Φ90–115 mm, low unit price and wide compatibility

Φ99mm · hole Φ110-135mm · 40.5kg

Main model — Φ99 mm OD for Φ110–135 mm, a good balance of penetration and life

Φ99mm · hole Φ110-135mm · 42.7kg

Suits low-pressure air — Φ99 mm OD for Φ110–135 mm, clean cuttings and true hole walls

Bits are made in our Yanggu plant — consistent buttons and hardness within a batch, with lockable lead times

Choose buttons by abrasiveness: SP for medium-hard, SP+SBL for abrasive rock — 20%+ longer life

Track bit changes by metres drilled rather than by hours — cheaper in practice