D075C21
HVOF Ceramic-Coated Shaft Sleeve for 6/4 D Pump
D075C21 shaft protection sleeve featuring high-velocity oxygen-fuel (HVOF) coating and mirror finish to eliminate premature grooving under packing in fine-silica slurries.
Metallurgical Specifications & Dimensional Interchangeability
| Universal Code: | D075C21 (SMAT-SEAL-6X4-SLV) |
|---|---|
| Compatible Frame & Pipe Series: | Slurry pump frame 6/4 D (Series 6X4) |
| Component Type: | HVOF Armored Shaft Protection Sleeve |
| Unit Mass & NIOSH Handling: | 5.8 kg — 1-Operator Manual Safe (MANUAL_SAFE • LI=0.52) |
| Critical Wall Thickness: | 16 mm (Sustrato Acero Inoxidable 420 + Recubrimiento HVOF WC-10Co-4Cr / Cerámica C21) |
| Outer Diameter (∅D₂): | 95 mm |
| Max Sphere Passage (Solids): | 12 mm |
| BOM Station & Precedence: | Station 02 — 04. Camisa Protectora de Flecha D075C21 (Estación 02 • Sin entalla en eje) |
| Metallurgy: | Sustrato Acero Inoxidable 420 + Recubrimiento HVOF WC-10Co-4Cr / Cerámica C21 |
| Verified Hardness: | ≥ 68 HRC (HVOF) / ≥ 58 HRC Sustrato |
| Critical Application: | Shaft sealing in 6/4 D pumps with braided PTFE/Graphite gland packing or dry centrifugal expeller seal |
| Assembly Guarantee: | Concentricity and H7 bore tolerance verified by micrometer prior to dispatch. Direct shipping from Durango Central Warehouse. |
| Everyday Physical Scale (ISO/IEC 7810): | Optimal reference axial clearance δ = 0.76 mm (exact thickness of 1 standard ISO 7810 bank card). |
1:1 Dimensional Fit & Dynamic Balance Assurance
Every D075C21 unit is physically matched against standard frame dimensions before dispatch from our Durango Central Warehouse. We ensure 100% drop-in interchangeability with industry-standard frames. Should a standard replacement part fail to fit your pump casing, it is immediately swapped from our floor stock.
Fine-tolerance manufacturing prints and complete internal dimensional matrices are kept off public tables to safeguard intellectual property. Detailed mechanical drawings and compliance dossiers are shared privately with authorized mine plant engineering and procurement teams.