K421 Dual Wheel Aluminum Core PU Cushioned AGV Caster
K421 low-center-of-gravity precision dual-wheel aluminum core caster single wheel load capacity 180kg-200kg. Perfect for AGVs, intelligent collaborative robots, and aerospace equipment handling in confined spaces, but still with a requirement of a heavy load capacity. By employing a precision single bearing as the swivel center together with a high-quality polyurethane cushioning structure, Aluminum PU caster achieves extremely low center of gravity stability and still provides excellent shock absorption for the safe and stable operation of precision instruments.
- KoCo
- China
- 15~30days
- 20 million per year
Product Description:
The K421 series PU cushioned wheel is developed for stability and precision by employing a single precision bearing as the yoke swivel center. This innovative design focuses on swivel flexibility, which means that the caster turns without swaying to keep the cart body stable. Moreover, high-quality polyurethane is used as a buffer spring, which not only raises the load capacity significantly but also gives excellent shock absorption.
Advantages:
Extremely Low Center of Gravity Design:
The mounted height has been minimized (only 96 mm), while still allowing a load capacity of 200 kg. The compact structural layout can be a great help to the effectiveness of the anti-tip function during acceleration or turning.
Distinctive Polyurethane Cushioning Structure:
Compared to regular casters, the K421 has a cushioning spring system made of high-quality polyurethane integrated. Apart from increasing the load capacity to a great extent, it also gets rid of the very small vibrations caused by the road.
17mm Giant Center Pin and Double-Layer Hardened Raceways:
A 17mm extra-large diameter center pin is combined with heat-treated double-row ball raceways; the two layers are hard, thus the bracket will never distort, or the steering will not be jammed under heavy loads.
Professional-Grade Black Electrophoretic Coating (E-coating):
High-performance black electrophoretic anti-corrosion treatment has been applied to the entire body. This kind of coating offers superior corrosion resistance compared to standard galvanizing, and a very industrial-looking, aesthetically pleasing surface as well. The surface treatment process is rust flake-free, and is indeed a perfect match to high-end laboratory, semiconductor clean room, and 3C automated production lines that demand dust-free conditions.
Top Plate &Yoke | Plate thickness:4.5mm |
Finish | Black E-coating |
Swivel | Two rows of ball bearings in hardened raceways for extra strength |
Kingpin | 17mm |
Wheel Bearing | Ball,Roller |
Axle | 8mm dia. bolt with locknut |
K421 Quick Selection Guide:
For ultimate low center of gravity (55mm wheel diameter): Mounting height 96mm only. Perfect fit for tightly packed robot bases or very low workbenches with very limited height. Balancing load capacity and flexibility (75mm wheel diameter): Installation height 116mm. Excellent obstacle crossing capabilities and the highest rolling efficiency, thus extremely suitable for mobile handling equipment that is frequently required to cross gaps.
Wheel material characteristics: DPA double-wheel high-rebound PU material, which is floor-friendly and offers excellent shock absorption, with very good silent performance.
| Wheel Diameter | Wheel Width | Wheel Material | Bearing | Load Capacity | Radius of Rotation | Height | Swivel Model |
55 | 22×2 | DPA Dual PU/Aluminum | Precision Sealed Ball Bearing | 180 | 50 | 96 | K421DPAB2044S01 |
| 65 | 22×2 | DPA Dual PU/Aluminum | Precision Sealed Ball Bearing | 190 | 58 | 105 | K421DPAB2544S01 |
| 75 | 22×2 | DPA Dual PU/Aluminum | Precision Sealed Ball Bearing | 200 | 63 | 116 | K421DPAB3044S01 |
K421 Mounting Plate Specifications:
There are two standard industrial mounting plates available for the K421 series:
Specification 01:
The entire size: 105 × 81.5mm.
Bolt hole pattern: 86 × 60mm.
Attaching Bolt size: Ø8.5mm.
Specification 02:
The entire size: 91 × 91mm.
Bolt hole pattern: 71 × 71mm.
Attaching Bolt size: Ø9mm.
Product Applications:
Automatic production lines, Intelligent robots, Automotive manufacturing industry, AGV unmanned vehicles, Tractors, Aerospace industry
About us:
KoCo employs modern testing instruments to oversee the quality and dependability of all casters. We have a set of equipment capable of performing dynamic tests, impact tests, and CMM (Coordinate Measuring Machine) inspections that allow us to thoroughly test caster performance from different angles such as rolling performance, impact resistance, and dimensional accuracy. The results of our meticulous tests demonstrate that our casters are highly reliable under various conditions, thus they are met with the approval of the industrial, commercial, and residential sectors, for which the highest standards are required. Moreover, we perform tests of furniture casters, starting force tests, brake fatigue tests to make sure that the operational performance of the casters is smooth as well as safe throughout their lifespan. Due to the high level of durability and stability that comes with the use of the KoCo casters, which are tested under the most stringent conditions, worldwide customers have put their trust in them.
KOCO Performance Testing：
KOCO has a professional R&D laboratory, and the test reports shown are just one example of our typical cases, providing you with a quality reference. We possess strong professional testing capabilities and can provide targeted performance verification and simulation experiments based on your specific load, road conditions, and industry standards.
Test video:
Test report:
What Is the Lead Time for Delivery?
The lead time depends on how many and what models you order. We arrange production very efficiently to be able to made deliveries on time. （Usually within 15-30 days）What Is Your Production Capacity?
Our maximum annual production capacity is up to 20 million casters.What International Shipping Methods Are Supported?
We can do sea freight, air freight, and land transportation to best satisfy the customer needs.How Many Years of Manufacturing Experience Do You Have?
Over 25 years.Which Industries Are KoCo Casters Suitable For?
At present, KoCo casters have become a common feature in a variety of industries and sectors including industrial, heavy-duty logistics, AGV/AMR, medical equipment, warehousing, furniture, and home appliances.What Is the Load Capacity of KoCo Casters?
KoCo casts have a full range of capacities from light to extra-heavy-duty casters with a load capacity of several tens of kilograms to a few tons. Check out the model of the specific product for more details.Does KoCo Casters Support Customization?
Definitely, if there is a need for a specific part like wheel size, material, core structure, or surface treatment, we are able to offer custom manufacturing.How to Conduct Quality Testing?
KoCo Casters are subjected to several quality and performance tests before they are shipped. The tests include: Load Test: Ensures the caster is safe to hold the rated load. Starting Force Test: The test proves if the load can be moved smoothly with minimal friction of resistance. Noise & Deflection Test: The test results focus on low noise generation, quiet operation, and minimal deviation during movement.
