Screwdown and Gap Control
AssemblyElectric screwdown for coarse roll position plus a hydraulic capsule for fast closed-loop gap control each pass. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Screwdown and Gap Control parts and their functions
8 top-level parts · 51 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Screwdown Screw | 2× | Large screw setting the roll gap |
| 2 | Screwdown Nut | 2× | Bronze nut carrying the screw thread |
| 3 | Screwdown Gearbox 4 parts | 1× | Worm-and-spur reduction for the screwdown |
| 4 | Screwdown Motor 4 parts | 1× | Electric motor driving the screwdown |
| 5 | Hydraulic Gap Control Capsule 3 parts | 1× | Hydraulic gap control cylinder for fine fast adjustment |
| 6 | Servo Valve | 2× | Servo valve metering oil to the capsule |
| 7 | Position Sensor | 2× | Magnetostrictive sensor reading capsule stroke |
| 8 | Load Cell | 2× | Load cell measuring roll separating force |
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Bill of materials for Screwdown and Gap Control
8 top-level lines · 26 rows shown · 51 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Screwdown Screw | reversing-rolling-mill-screwdown-screw | 2× | 2 | · | part |
| 2 | Screwdown Nut | reversing-rolling-mill-screwdown-nut | 2× | 2 | · | part |
| 3 | Screwdown Gearbox 4 parts | reversing-rolling-mill-screwdown-gearbox | 1× | 1 | 13 | assembly |
| 3.1 | Gearbox Housing | gearbox-housing | 1× | 1 | · | part |
| 3.2 | Helical Gear Pair | gear-pair | 2× | 2 | · | part |
| 3.3 | Ball Bearing | ball-bearing | 6× | 6 | · | part |
| 3.4 | Oil Seal | oil-seal | 4× | 4 | · | part |
| 4 | Screwdown Motor 4 parts | reversing-rolling-mill-screwdown-motor | 1× | 1 | 25 | assembly |
| 4.1 | Stator Assembly 3 parts | stator-assembly | 1× | 1 | 3 | assembly |
| 4.1.1 | Stator Core (laminations) | stator-core | 1× | 1 | · | part |
| 4.1.2 | Copper Winding | copper-winding | 1× | 1 | · | part |
| 4.1.3 | Slot Insulation | stator-insulation | 1× | 1 | · | part |
| 4.2 | Rotor Assembly 4 parts | rotor-assembly | 1× | 1 | 19 | assembly |
| 4.2.1 | Rotor Shaft | rotor-shaft | 1× | 1 | · | part |
| 4.2.2 | Rotor Core | rotor-core | 1× | 1 | · | part |
| 4.2.3 | Neodymium Magnet | neodymium-magnet | 16× | 16 | · | part |
| 4.2.4 | Ball Bearing | ball-bearing | 1× | 1 | · | part |
| 4.3 | Motor Housing | motor-housing | 1× | 1 | · | part |
| 4.4 | Ball Bearing | ball-bearing | 2× | 2 | · | part |
| 5 | Hydraulic Gap Control Capsule 3 parts | reversing-rolling-mill-hgc-capsule | 1× | 1 | 3 | assembly |
| 5.1 | Capsule Cylinder | reversing-rolling-mill-capsule-cylinder | 1× | 1 | · | part |
| 5.2 | Capsule Piston | reversing-rolling-mill-capsule-piston | 1× | 1 | · | part |
| 5.3 | O-Ring Set | oring-set | 1× | 1 | · | part |
| 6 | Servo Valve | reversing-rolling-mill-servo-valve | 2× | 2 | · | part |
| 7 | Position Sensor | reversing-rolling-mill-position-sensor | 2× | 2 | · | part |
| 8 | Load Cell | reversing-rolling-mill-load-cell | 2× | 2 | · | part |
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Where the screwdown and gap control is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.01–$2. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| sundram.com ↗ | Chennai, IN | Fasteners | 10,000 pcs | 3–5 wks |
| lpsindia.com ↗ | Rohtak, IN | Fasteners | 10,000 pcs | 3–5 wks |
| escort-fastener.com ↗ | Suzhou, CN | Fasteners | 10,000 pcs | 3–5 wks |
| tbfastener.com ↗ | Shanghai, CN | Fasteners | 10,000 pcs | 3–5 wks |
| sterlingtools.in ↗ | Faridabad, IN | Fasteners | 10,000 pcs | 3–5 wks |