CP5031 Heavy Duty Cast Iron Rubber Caster
Cast iron cored wheels for loads that would flat-spot anything softer.
Published Specification
- ModelCP5031
- Wheel MaterialCast Iron Rubber
- Wheel Dia(mm)100/125/150/200
- Wheel Width50
- Overall Height(mm)135/159/189/236
- Capacity(kg)150/250/300/400
Include the quantity, your destination port or market and your company name. Renwei states that enquiries are answered within 12 hours.
What This Model Is
The CP5031 is an extra heavy duty caster from the Qingdao Renwei catalogue. The wheel is Cast Iron Rubber, offered in 100/125/150/200mm diameters, on a 50mm section, and rated at 150/250/300/400kg respectively.
Diameter and capacity are published as parallel lists: the first capacity belongs to the first diameter, and so on down the row.
What the Specification Tells a Buyer
Cast Iron Rubber wheel
A harder wheel material carries more per caster on smooth industrial floors, at the cost of noise and floor marking.
Capacity published per diameter
This model is listed as 100mm at 150kg, 125mm at 250kg, 150mm at 300kg, 200mm at 400kg. Using the divide-by-three rule, a set of four 200mm casters covers equipment up to about 1200kg.
Fitted height published
Overall height is listed as 135/159/189/236mm across the diameters offered, so a replacement can be chosen without changing the working height of the equipment.
Matched spares from the same catalogue
Wheels, casters and tubes are published here as their own models with their own specifications, so a worn part can be ordered by model number instead of described over email.
Full Published Specification
Every value below is taken from the Renwei catalogue entry for this model. Rows marked as not published are shown rather than hidden, so you know exactly which questions to ask.
| Model | CP5031 |
|---|---|
| Wheel Material | Cast Iron Rubber |
| Wheel Dia(mm) | 100/125/150/200 |
| Wheel Width | 50 |
| Overall Height(mm) | 135/159/189/236 |
| Capacity(kg) | 150/250/300/400 |
| Bracket Type | Not published on the source site |
Reading this table
Model prefixes distinguish the bracket type within the same wheel family; capacity is published against each wheel diameter.
How the CP5031 Compares Within the Family
Published Capacity(kg) for this model set against its neighbours in the Big Heavy Caster family. Figures are as published; no model is shown with an estimated value.
| Model | Capacity(kg) |
|---|---|
| CP5031 | 150/250/300/400 |
| CP1901 | 300/400/450/500 |
| CR1801 | 150/250/300/400 |
| CR1901 | 300/400/450/500 |
| CS1801 | 150/250/300/400 |
What Is Published and What to Ask
Wheel material is published for this model. Bracket material, raceway type and fixing pattern are not, so ask for them if you are matching an existing fitment.
Before you order
Minimum order quantity, lead time, payment terms, warranty and certifications are not published by Renwei. Ask for all five in writing against this model number before planning a shipment.
Getting the Best From This Model
- Fit two fixed and two swivel casters where the equipment has to track straight over distance.
- Keep swarf and thread out of the raceway; it is the most common cause of a stiff swivel.
- Divide the total loaded weight by three rather than four when selecting capacity, and add a margin for shock loading over thresholds.
- Match the overall height when replacing, or the equipment will change working height.
Industries and Applications
Manufacturing and Workshops
Construction and Contracting
Warehousing and Logistics
CP5031 Heavy Duty Cast Iron Rubber Caster Questions
What load is the CP5031 rated for?
The source catalogue publishes 150/250/300/400kg for this model. It is a per-model figure, so use it rather than a figure quoted for the Big Heavy Caster range as a whole.
Which capacity applies to the 100mm wheel on the CP5031?
The lists run in parallel, so the 100mm wheel is rated at 150kg and the 200mm wheel at 400kg. Read the diameter row and the capacity row together rather than taking the highest number.
What is the minimum order quantity and lead time?
Neither is published on the source site, so neither is stated here. Send this model number with the quantity you are considering and ask for both in writing before you plan a shipment.
Are certificates or test reports available for the CP5031?
The source site publishes no certification list, so none is claimed on this page. Request the specific certificates your market requires and ask for them in writing before ordering.
Other Big Heavy Caster Models
Technical Reading
Caster Load Ratings Explained
Matching Wheel Material to Your Floor
Quote the CP5031 Heavy Duty Cast Iron Rubber Caster
Send this model number with the quantity you need, your destination port or market, and your company name.