Once diameter, pitch, incline, and construction material are settled against your material data, the remaining decision is which supplier delivers, installs, and supports it reliably over years of abrasive or continuous duty. Here's what to confirm.
Installation Scope and Timeline
Screw conveyor installation covers structural mounting, drive and gearmotor connection, bearing alignment (end and intermediate hanger bearings for longer runs), and — where relevant — inlet/outlet connection to upstream and downstream equipment. For longer conveyor runs, intermediate bearing spacing and alignment is a real installation-quality factor, not a minor detail: misaligned hanger bearings are one of the more common early-failure points in continuous-duty screw conveyors. Confirm your supplier's installation scope explicitly covers alignment verification, not just physical placement.
Ask for a realistic installation and commissioning timeline broken into stages — fabrication, delivery, mechanical installation, drive commissioning, and load testing against your actual material — rather than a single lump-sum estimate.
Confirming Capacity Holds Up on Your Material
A screw conveyor's rated capacity range (1–100 t/hr on ENZAC's standard range) depends on diameter, pitch, rotational speed, and your material's bulk density and flowability — not diameter alone. Before you order, confirm your supplier has sized the specific screw geometry against your material data sheet and required throughput, and that commissioning includes a load test verifying real-world capacity, not just a no-load run.
After-Sales Support to Confirm Before You Sign
- Spare parts — screw flights, hanger bearings, and trough liners (for abrasive service) are the parts most likely to need replacement over the conveyor's service life. Confirm stock availability and lead time, particularly for abrasive-material applications where wear-part replacement is a routine maintenance item, not an exception.
- Service and maintenance — scheduled preventive maintenance (lubrication, bearing inspection, alignment checks) extends service life meaningfully on continuous-duty conveyors. Confirm what's available and the response time for a breakdown callout.
- Retrofit and upgrade — for aging screw conveyors already on-site, confirm whether wear-resistant lining, drive upgrades (VFD retrofit), or trough reconditioning is available as an alternative to full replacement.
ENZAC provides spare parts supply and service and maintenance (including annual maintenance contracts) as ongoing services for the screw conveyors it supplies, and separately for third-party conveyors of the same type — plus retrofit and upgrade options where full replacement isn't the right call.
Warranty Terms
Confirm coverage (trough/tube structure, screw shaft and flights, gearmotor and drive) versus exclusions (wear liners and bearings under abrasive-duty conditions, which are consumable by design), the warranty period, and whether the clock starts at commissioning sign-off or shipment.
Construction Decisions Are Part of the Support Conversation
If your material is abrasive (minerals, some fertilizers, filled or recycled plastics), confirm upfront whether ENZAC's hardened or wear-resistant lined construction is included or optional in your quote — this decision affects both initial cost and how often you'll need spare-part support down the line. The right construction spec upfront reduces the maintenance burden later; it's a decision worth making with total cost of ownership in mind, not just landed equipment price.
Review the full Screw Conveyor equipment page for configuration and construction options.
Ready to talk about your screw conveyor?
ENZAC supplies, installs, and supports screw conveyors in Malaysia — mild steel or SS304/316, standard or wear-resistant construction — including spare parts and maintenance after installation. Send us your material data sheet and layout constraints and we'll return a specification, quote, and installation timeline within 2 working days.