【Breaking the Large-Diameter Myth】Batch Delivery of D1500 Cross Cutter Core Barrels Now Rolling Out!

The larger the diameter, the exponentially higher the demands on concentricity and base material strength.

Many workshops shy away from large-diameter orders — not because they don't want the business, but because their welding integrity and roll-forming precision simply can't hold up under high torque.

 

Take a close look at this freshly completed batch of D1500 Cross Cutter Core Barrels.

This is not just rolled steel plate. It's the result of our heavy-duty CNC plate rolling machine paired with dual-robot automatic submerged-arc welding lines. To withstand extreme torsional stress, we've reinforced the barrel with a cross-type stiffener web structure — ensuring every meter of penetration stays perfectly concentric, with zero diameter shrinkage and zero weld seam failure.

 

Shipping alongside them are our high-frequency bestsellers — the D1000 Core Barrels with Bullet Teeth. Engineered for hard rock and boulder-rich overburden layers, these feature:

Wear-resistant tungsten carbide tooth holders (imported grade)

Optimized attack angle for aggressive cutting

Quick-change retention system for fast field replacement

 

Why can we commit to rush orders? Because we maintain:

10,000+ tons of on-site steel plate inventory (Q345B/C and wear-resistant grades)

24/7 shift-based precision machining — milling, boring, heat treatment, and assembly all under one roof

 

No hype — just look at the seam quality (fish-scale weld pattern), the hardness test reports (HRC 50–55 on cutting edges), and our on-time delivery track record.

When it comes to rotary drilling tools — we don't just make them; we engineer them for the toughest ground.

 

OEM, ODM, and standard sizes all welcome. Drawings or sample references accepted. Inquiry responded within 4 hours.