Combine Harvester Concave
Welded concave assemblies that wrap the threshing cylinder — the heart of any combine harvester. Fabricated from cold-rolled side plates and round-bar / rasp-bar threshing elements, supplied to OEM drawing or to crop-specific spacing.
Custom manufacturing
We manufacture this product in any shape, any design and any size to customer drawing or sample. Carbide-tipped, laser-clad and hard-faced variants available on request.
Technical Specification
- Side plates
- Laser-cut mild steel, 5 – 8 mm
- Threshing bars
- EN8 / EN9 round bar, hardened — or rasp-bar profile
- Spacing
- Wheat / paddy / maize / pulse — crop-specific
- Welding
- MIG / TIG
- Finish
- Phosphated, primer + topcoat
- Variants
- Standard, large-wire, small-wire, fine-wire (paddy)
Typical Applications & Fitments
- Threshing cylinder concaves on all major Indian combines (Preet, Kartar, Dasmesh, Mahindra Swaraj, Standard)
- Aftermarket replacement concaves for global combines on customer pattern
- Crop-conversion kits (wheat ↔ paddy ↔ maize)
Other Product Families
Combine Harvester Blades
Finger blades, knife sections, FR / RR teeth, full RR teeth and bolt-fit variants.
View specifications
Straw Walker Shafts
Crankshafts and straw-walker drive shafts in EN8D, machined and dynamically balanced.
View specifications
Combine Sieves & Chaffers
Upper sieves, lower sieves and pre-cleaner chaffers — louvred, woven and adjustable.
View specificationsLet's discuss your requirement.
Send us your drawing, OEM part number or simply a clear photograph of the part you need, and we will revert with a sample, lead time and FOB price.