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Four Sheave Cable Entrance Roller with 150mm Tube Diameter for Duct Pulling Cable Roller Pulley
Product Details:
| Place of Origin: | Ningbo, China |
| Brand Name: | Suntech |
| Certification: | ISO |
| Model Number: | SHL150C1 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Plywood case, one unit per compartment with chute protected by foam wrap |
| Delivery Time: | 3-7 days for stock orders |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 500 PCS per Month |
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Detail Information |
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| Item No.: | 21251-21266 | Series: | C Series Cable Entrance Roller |
|---|---|---|---|
| Models: | SHL80C To SHL200C1 | Number Of Sheaves: | 3 Or 4 |
| Tube Diameter: | 80-200mm | Weight Range: | 17.0-30.5KG |
| Highlight: | Four Sheave Cable Entrance Roller,150mm Tube Diameter Duct Entrance Roller,Duct Pulling Cable Roller Pulley |
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Product Description
Purpose of the C Series Entrance Roller
A duct mouth is a bottle neck. The cable converges into a fixed bore, the pull tension is at its highest relative to contact area, and the tube lip sits right where the cable changes from a free run into a constrained one. The C series entrance roller addresses that point with a multi sheave frame that presents a curved path across the tube diameter. Units are supplied with three or four sheaves across a tube diameter range of 80mm to 200mm, and the series weight runs from 17KG to 30.5KG.
Sheave count and what it changes
Three sheave units carry the cable across the entry on a single curved path. Four sheave units add a contact line, which spreads the load over a longer length of sheath and is the usual choice where the cable is large for the bore or where the entry angle is steep. The tube diameter figure, not the sheave count, is the first selection criterion, because the frame has to sit on the tube mouth.
Specification series
| Item No. | Model | Number of Sheaves | Tube Diameter | Weight |
|---|---|---|---|---|
| 21251 | SHL80C | 3 | 80mm | 17.0KG |
| 21252 | SHL90C | 3 | 90mm | 18.0KG |
| 21253 | SHL100C | 3 | 100mm | 20.0KG |
| 21254 | SHL130C | 3 | 130mm | 20.5KG |
| 21255 | SHL150C | 3 | 150mm | 21.0KG |
| 21255A | SHL180C | 3 | 180mm | 22.0KG |
| 21256 | SHL200C | 3 | 200mm | 23.0KG |
| 21261 | SHL80C1 | 4 | 80mm | 24.0KG |
| 21262 | SHL90C1 | 4 | 90mm | 25.0KG |
| 21263 | SHL100C1 | 4 | 100mm | 25.0KG |
| 21264 | SHL130C1 | 4 | 130mm | 25.0KG |
| 21265 | SHL150C1 | 4 | 150mm | 26.0KG |
| 21265A | SHL180C1 | 4 | 180mm | 27.0KG |
| 21266 | SHL200C1 | 4 | 200mm | 30.5KG |
Matching the roller to the duct
- Read the tube diameter from the drawing and pick the matching row. A roller sized to a smaller tube sits proud of the mouth and the cable will bridge the gap.
- Check the cable outer diameter against the bore and against the roller groove; both have to clear.
- Choose the four sheave variant where the cable is close to the bore limit, where the entry is angled, or where the same unit will be reused on heavier sections.
- Confirm the frame fixing detail at the duct mouth, since the base has to sit flat on the structure.
On site
Seat the frame so the first sheave sits inside the cable path before tension is applied, then make the first few metres of pull slowly while watching the entry. If the cable rides up on the frame edge, the roller is out of line rather than undersized. Keep the sheaves clean: grit carried into the groove is the usual source of jacket marking on reused units, and a wipe down between pulls costs less than a rejected section.
Quality routine before packing
- Every sheave checked for free rotation and for groove damage.
- Frame and welding inspected; sharp edges dressed.
- Unit weight compared with the series table row for the ordered size.
- Plywood case packing, 500 PCS per month capacity, 1 PCS minimum order.
Scope of the published data
The item numbers, sheave counts, tube diameters and weights above are taken from the current C series datasheet. This page does not publish a percentage figure for tension reduction, does not claim the roller fits tube mouths of a different nominal size, and does not state a certification beyond the ISO entry in the attribute table. Where the site drawing shows a non standard duct mouth, send the dimensions and the frame detail will be confirmed before the order is accepted.
Common questions
Do I need four sheaves for a 150mm duct?
Not automatically. Three sheaves suit a straight entry with cable well inside the bore. Four sheaves are the safer choice where the cable is large for the duct or the entry angle is steep.
Can the same unit serve different tube sizes?
Each model is built to one tube diameter. Order the row that matches the duct mouth on the drawing.
Is the roller heavy to position?
Series weight starts at 17KG for the 80mm three sheave unit and reaches 30.5KG at 200mm with four sheaves. Plan a two person lift above 25KG.
What are the trade terms?
1 PCS minimum order, L/C or T/T, 3-7 days for stock, plywood case packing.
