Sandman® Mission C-Pumps for Horizontal Directional Drilling

Sandman® Mission Centrifugal Pumps are a gold standard in the HDD (Horizontal Directional Drilling) industry for handling abrasive drilling fluids, mud circulation, and slurry transport. The heavy-duty pumps are engineering for reliability in demanding environments like oil/gas drilling, mining, and HDD. They’re renowned for their open impeller design, which minimizes turbulence and wear when pumping high-viscosity, sand-laden muds—critical for trenchless operations where surface disruption must be minimal. In HDD, they excel as mud transfer pumps, mixing pumps, and circulation boosters, enabling longer bores (up to 3,000 meters) without frequent downtime.

Key Features of Mission Magnum I Pumps for HDD:
Design Advantages: Concentric casing for reduced abrasion; wide open-vane impellers for smooth flow and lower axial thrust; full pipe-diameter entrance to cut turbulence.
Material Options: Hard iron, stainless steel, aluminum bronze, or high chrome alloy for corrosion/abrasion resistance.
Power Configurations: Unitized with electric motors, diesel engines, or hydraulic drives; horizontal, vertical, or close-coupled setups.

Applications in HDD:
Mud Circulation: High-pressure transfer of drilling fluid to cool the bit, lubricate, and carry cuttings back via annulus.
Mixing & Agitation: Skid-mounted with jet hoppers for rapid bentonite/polymer blending.
Solids Control: Feeding desanders, desilters, and centrifuges; also for frac-out recovery in sensitive soils.
Transfer & Boosting: Between mud tanks or to rig systems, preventing cavitation in plunger pumps.

Parameters of commonly used Magnum pumps in HDD:

Drilling-rig tonnage	Pump Model	Capacity (m³/h)	Head (m)	Motor Power (kW)
15-25 tons	4x3x13	90-130	28-35	22-30
25-40 tons	5x4x14	140-200	32-40	37-45
38-60 tons	6x5x14	200-260	32-38	55-75
60-100 tons	8x6x14	240-350	32-40	75-90
100-180 tons	8x6x14 & 10x8x14 in series	500-700	38-45	90-132
200-350 tons	10x8x14 x 2set	400-550	40-50	132-160
400-600 tons	12x10x23 / 14x12x22	800-1200	45-65	250-315