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Alluvial gold mining pumps and supporting equipment for African river mining sites.
About Us

Sand Pump Manufacturing Since 2002

Liaocheng Chenma Industrial and Trading Co., Ltd. manufactures cast iron sand pumps and supporting equipment for mining, dredging, construction drainage and alluvial gold mining sites.

2002Establishment time
3000+ tonsAnnual casting output
5-8%Efficiency improvement target
Company Profile

Over 20 Years in Foundry and Mechanical Engineering

With over 20 years of foundry and mechanical engineering experience, Chenma builds robust pumping systems for abrasive slurry conditions. The company serves mining, dredging, construction drainage and alluvial gold mining buyers that need equipment to keep working in sand, gravel and high-wear slurry.

Chenma’s factory work covers pump casting, CNC machining, pump assembly, wear part preparation and shipment support. For buyers in Africa and other remote markets, this matters because one wrong model, missing impeller or mismatched diesel engine can stop a whole washing site.

Chenma factory aerial view
Chenma casting workshop
Chenma CNC machining center
Manufacturing Capability

Casting, Machining and Pump Package Preparation

Integrated Casting

Lost foam molding helps keep the pump body structure consistent and reduces weld splicing on key cast components used in abrasive slurry service.

Machining Control

Impeller balance, pump body fit and pulley matching are checked before shipment because speed error and poor alignment often appear only when the pump runs under load.

Repeat Part Supply

Foundry, CNC machining and inspection work are kept close together, so pump casing, impeller, second section and pulley orders can be repeated with clearer records.

Package Matching

Pump selection starts from the working condition: river depth, discharge distance, slurry material, power source and destination country.

Office Environment

Production Follow-up From Liaocheng

Chenma handles production follow-up, export communication and order details from Liaocheng, Shandong. Pump selection, diesel power, hose length, spare parts and packing requirements are confirmed by the same team before shipment.

Order Follow-up

After the quotation, the important work is model confirmation, production progress, packing details and shipment preparation. Clear communication reduces wrong model selection and missing spare parts.

Chenma office work area
Chenma company office desk
Chenma office reception room
Chenma meeting and office environment
Why Choose Us

Production Control for Heavy Slurry Pump Orders

For slurry pump buyers, price is only one part of the order. Casting quality, machining accuracy, inspection, spare part repeatability and shipment preparation decide whether the equipment can work steadily after arrival.

Casting and Machining

Sand pump bodies and wear parts are controlled through casting, machining and fitting work before final surface treatment and packing.

Inspection Before Shipment

Pressure testing, fit checking and running condition review help reduce leakage, vibration and early wear after the pump reaches the site.

Application Matching

Equipment is matched around abrasive slurry, river sand, dredging, gold washing, diesel power and remote-site spare part planning.

Production Photos

Workshop, Assembly and Pump Part Handling

Casting handling, surface finishing, assembly, part checking and packing preparation are part of the daily production workflow.

Chenma pump part production photo
Chenma workshop grinding pump component
Chenma worker processing pump part
Chenma pump casing workshop work
Chenma pump assembly production scene
Chenma pump part inspection and finishing
Chenma worker assembling pump equipment
Chenma production worker moving pump part
Industrial Dredging Solutions Pioneer Since 2002

Built Around Sand Pump Manufacturing

Chenma’s product foundation is cast iron sand pumps and supporting components. Around that foundation, we supply diesel engines, rubber hose, PVC flat hose, pump wear parts, hammer crushers and gold recovery products for buyers who need a workable mining package.

CompanyLiaocheng Chenma Industrial and Trading Co., Ltd.
Main ProductsWSA horizontal sand pumps, LSA vertical sand pumps and auxiliary components
Pump Range4 inch to 16 inch discharge sand pump systems
Core ProcessLost foam casting, CNC machining, pump assembly, pressure checking and shipment preparation
ApplicationMining, dredging, construction drainage, river sand pumping and alluvial gold mining sites
Export SupportProduct matching, spare part planning, OEM discussion, packing support and sea freight order preparation

Contact Chenma

Send your working condition, pump size, discharge distance, power source and destination country. We will check the pump and supporting equipment before quotation.