What is the delivery lead time and supply model for slurry pump parts from Durango?

High-demand slurry wear parts (A05 impellers, volutes, centrifugal expellers, and stuffing box assemblies) are maintained in inventory buffer at our Durango Warehouse. This allows mining operations to schedule prompt collection with quote folio or overland delivery (24 to 48 hrs across northern and central Mexico mining districts), removing the need for mining teams to tie up working capital or manage lengthy international import logistics.

What dynamic balancing tests are performed on slurry pump impellers?

All slurry impellers and rotating components undergo shop dynamic balancing and concentricity inspection on our Durango test rig. Vibration reduction is verified prior to dispatch to protect your plant bearing assemblies.

Are your replacement spare parts 100% interchangeable with existing plant pumps?

Yes. Our replacement parts undergo tight metrological verification for 1:1 direct interchangeability with industry-standard frames (4x3 C-AH through 10x8 F-AH series), matching bolt circles, shaft tapers, and suction clearances without field torch modifications.

What warranty covers casting defects and wear life in High Chrome A05 alloy?

We back every heat with chemical melt certificates verifying 27% chromium content and 650+ HB Brinell hardness. In the rare event of internal casting blowholes or shrinkage porosity, immediate replacement is executed at our yard without administrative friction.

What is the turnaround time for a formal commercial RFQ or quote requisition?

Our engineering team responds to formal quote requisitions within the same business day. For flotation cell projects or dry tailings filter press packages, we formulate preliminary technical-commercial proposals with clear delivery timelines dispatched from Durango.

DOOR 3 • METALLURGICAL CONTROL & LABORATORY

Process Control

Direct-reading metallurgical instrumentation for grinding, classification, flotation, and dewatering control: Pulp Density & % Solids Scales (Marcy Style), SMAT Laboratory Batch Pressure Filters (60–100 psi), and Certified ASTM E11 / ISO 3310 Test Sieves (5" to #635 Mesh).

Quote Process Control Equipment → Marcy, Gy & ASTM √2 Calculator ↓

PULP DENSITY & % SOLIDS • 1000 CM³ CUP

Pulp Density & % Solids Scale (Marcy Style)

Direct-reading hanging dial scale for immediate plant-floor determination of net pulp weight, pulp specific gravity (kg/L), and percent solids by weight (%Cw) without manual lookup tables.

PLANT INSTRUMENTATION • PULP DENSITY SCALE (MARCY) CAD 1:1 REF

Calibrated Cup: 1000 cm³ in 304 Stainless Steel or clear Acrylic with overflow slots

12 Interchangeable Rings: Dry ore specific gravity from SG 2.2 up to SG 4.4

Control Points: Mill discharge, hydrocyclone overflow, flotation feed, and thickener underflow

Quote Marcy Scale → Simulate Marcy Dial Reading

METALLURGICAL DEWATERING TESTS • 60 TO 100 PSI

SMAT Laboratory Batch Pressure Filter

Benchtop and floor-mounted vertical pressure filtration unit for rapid concentrate sample dewatering, filter cake residual moisture determination, and filtration rate curves prior to full-scale filter press sizing.

METALLURGICAL CONTROL • LABORATORY BATCH PRESSURE FILTER CAD 1:1 REF

Chamber & Frame: Heavy-duty carbon steel or stainless steel vertical cylinder with guide rods

Top Closure & Seal: Trapezoidal lead-screw T-handle clamp and O-ring sealing lid

Pneumatic Operation: Top compressed-air inlet with pressure gauge, relief valve, and regulator for 60 to 100 psi

Quote Lab Batch Pressure Filter →

D80 / P80 PARTICLE SIZE CONTROL • ASTM E11 / ISO 3310

Certified ASTM E11 / ISO 3310 Test Sieves & Sieve Shakers

Precision woven-wire test sieves with seamless spun frames in Brass and Stainless Steel (8" and 12" diameters, full-height or half-height) for hydrocyclone $P_80$ cut verification and size-by-size metallurgical balances.

PARTICLE SIZING • ASTM E11 / ISO 3310 CERTIFIED TEST SIEVES CAD 1:1 REF

Aperture Range: From 5" (125 mm) down to #635 mesh (20 µm) in Tyler / ASTM √2 progression

Frame Options: 8" (203 mm) and 12" (305 mm) in 304/316 Stainless Steel or Brass, with cover and receiver pan

Accessory Equipment: Mechanical / electromagnetic sieve shakers and Riffle sample splitters

Quote ASTM Sieve Stack → Calculate √2 Series & Gy Sample Mass

PLANT METALLURGICAL CONTROL TOOL

Marcy Dial Simulator, ASTM E11 √2 Sieve Stack & Pierre Gy Sample Mass

Enter your dry ore specific gravity ($S_s$), percent solids by weight ($C_w$), and target grinding cut size ($P_80$) to determine the active Marcy dial ring, minimum sample mass ($M_s$), and 7-sieve ASTM E11 stack.

Dry Ore Specific Gravity ($S_s$): Solids by Weight ($C_w$ %): Target Grinding Cut $P_80$ (µm): Preferred Sieve Frame Material:

Marcy Cup Reading (1000 cm³) 1474 g net • ρp = 1.474 kg/L Active dial ring: SG 2.8 (Range 2.2 to 4.4)

Minimum Sample Mass (Pierre Gy, σ²F = 1%) 250 g dry (Wet + Dry Sieving) Shape factor f = 0.50, granulometric factor g = 0.25

Recommended ASTM E11 Stack (√2 Series) #70, #100, #140, #200, #270, #325, #400 Includes Cover and Receiver Pan

Ready for quotation workbench: SMAT-CTRL-MARCY-1000 / SMAT-CTRL-SIEVE-ASTM Send Specification to Quote Workbench →

CIRCUIT-LEVEL GROUNDING

Select Your Plant Circuit

Map your grinding classification, flotation, or filtration equipment and wear parts with 1:1 dimensional verification in Durango.

Severe slurry service: 45% to 60% solids by weight, high quartz abrasiveness.

1. Mill Discharge Sump

8x6 / 10x8 Horizontal Slurry Pumps

PULP CONDITION & CHALLENGE:

Surge feed variations, high startup torque, and coarse solids turbulence.

ENGINEERING SPECIFICATION:

Horizontal centrifugal slurry pumps with wet-end wear parts in High Chrome, Rubber, or Polyurethane and 1:1 dimensional verification in Durango.

2. High-Head Slurry Impeller (Closed / Wide-Passage)

Closed Impeller in High Chrome (A05), Rubber, or Polyurethane

PULP CONDITION & CHALLENGE:

Severe impact wear from silica solids and loss of classification head.

ENGINEERING SPECIFICATION:

650+ HB white iron with dynamic balancing on Durango test bench.

3. Volute Liners, Throatbushes & Frame Plate Liners

Wet-End Wear Lot (e.g., 5 Impellers + 5 Throatbushes + 4 Volutes)

PULP CONDITION & CHALLENGE:

High risk of cutwater perforation and unplanned grinding circuit shutdown.

ENGINEERING SPECIFICATION:

Reinforced liner wall thickness in High Chrome, Rubber, or Polyurethane for extended campaign run-time.

4. Centrifugal Expeller & Stuffing Box (No Mechanical Seal)

Centrifugal Expeller, Expeller Ring, Shaft Sleeve & Stuffing Box

PULP CONDITION & CHALLENGE:

Lack of high-pressure gland seal water and bearing slurry contamination.

ENGINEERING SPECIFICATION:

Dry centrifugal expeller and braided PTFE/graphite stuffing box (we do not sell mechanical seals due to severe slurry abrasion and corrosion).

Hydrodynamic continuity: uniform air dispersion, agitation mechanisms, and pulp conditioners.

1. Flotation Cell Mechanisms & Pulp Conditioners

Mechanisms & Conditioners for 50 to 300 ft³ Flotation Cells

PULP CONDITION & CHALLENGE:

Heavy solids sanding at cell bottoms and drive shaft/head wear.

ENGINEERING SPECIFICATION:

Drive heads, shafts, air standpipes, and agitation mechanisms for Rougher, Cleaner, and Scavenger banks.

2. Flotation Impellers, Diffusers & Wear Spares

Rotors, Stators & Diffusers in Molded Polyurethane and Rubber

PULP CONDITION & CHALLENGE:

Stator finger chemical corrosion and loss of bubble generation capacity.

ENGINEERING SPECIFICATION:

4140 quenched and tempered steel shaft, heavy bearings, and anti-cavitation dispersers.

Process water recovery, filter plates, cloths, and Marcy-type pulp density scales.

1. Recessed-Plate Filter Presses (800 mm to 1500 mm)

800 mm to 1500 mm Filter Press (up to 16 bar)

PULP CONDITION & CHALLENGE:

High cake moisture, long cycle times, and process water loss.

ENGINEERING SPECIFICATION:

16 bar electro-hydraulic closing with polypropylene plates for concentrates and dry tailings.

2. Filter Plates, Cloths & Pulp Density Scales (Marcy Type)

Polypropylene Plates, Heat-Sealed Cloths & Marcy Pulp Density Scales

PULP CONDITION & CHALLENGE:

Cloth blinding from clay fines and direct on-site measurement of % solids in slurry.

ENGINEERING SPECIFICATION:

16 bar rated plates and cloths, plus Marcy-type scales with 1000 cm³ container and 12 interchangeable dials.