What is an idler frame?
It is the welded structure that mounts the idler rolls at the correct spacing and trough angle and bolts to the conveyor stringers.
TRF · Frames
Troughing Frame
槽型支架
Troughing idler frames that locate 2-, 3- and 5-roll sets at the correct trough angle, with the bracket slots your idler shafts need.
- SKU prefixFRAMES-TRF
- MOQ100 pcs
- Lead time1 month
- StandardTRF
Configure & add to inquiry cart
Choose the specs for your application. We will reply with pricing, FOB and lead time for your selection.
Current SKU: FRAMES-TRF
Overview
Troughing Frame at a Glance
89–194 mmIdler Ø
500–2400 mmBelt width
20–45 °Trough angle
ISO 9001 / MACertified · TRF
Usage
Usage
Troughed Bracket — the bracket that cradles the 3-roll troughed idler set, shaping the loaded belt into a U so it carries maximum volume without spilling the edges. The correct bracket angle (typically 20 to 35 degrees) is what gives a conveyor its rated capacity.
Operating conditions
Operating conditions
| Working temperature | Ambient service range (-20 °C to +40 °C); the coating protects the steel, stainless for aggressive sites. |
|---|---|
| Dusty environment | Suitable — all-steel structure with no bearings or seals to contaminate |
| Moisture & water | Suitable — hot-dip galvanized or stainless frames for outdoor, port and washdown service |
| Corrosive environment | Powder-coated for ordinary acid or alkali · Galvanized for coastal and semi-outdoor · Stainless for high-salinity and high-humidity sites |
| Certification | MA coal-mine safety certified versions available — confirm the certified SKUs for your project |
| Outdoor use | Suitable — coated and stainless options for coastal and weathering service |
Technical overview
Idler frames and structures hold the rolls in alignment and transfer belt loads into the foundations. HBXM supplies carrying, return and training frames in galvanized or painted steel, cut and drilled to your belt width and trough angle.
How do I specify a frame for my conveyor?
Give us belt width, trough angle, idler arrangement and stringer spacing; we cut and drill to match so installation is bolt-on.
Are frames supplied pre-assembled?
We can ship loose sets for container savings or pre-welded frames for faster site erection, depending on your logistics.
Galvanized or painted steel?
Galvanizing suits outdoor and corrosive sites; painted frames are fine for enclosed or dry plants and cost less.
Highlights
Features
Idler Ø options
Idler diameters Ø89–194 mm to match your troughing geometry.
Belt-width coverage
Covers belt widths 500–2400 mm across standard conveyor sections.
Trough angle
Troughing angle 20–45 ° for material containment.
Roll configuration
2–3 rolls per set for the duty.
Structural steel fabrication
Channel and box sections built to drawing.
Bolted or welded build
Field-adjustable or fixed assembly per site need.
Quality
1
Weld integrity
Welds inspected for load-path continuity.
2
Dimensional accuracy
Holes and spans match the approved drawing.
3
Material certification
Steel grade verified per order.
4
Finish options
Coatings for weather and corrosion exposure.