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Langyi ESD TPR Plate Mount Casters with Brake are designed for medium-duty carts, mobile racks, workstations and equipment used in electronics manufacturing and other ESD-sensitive environments.
The series combines an ESD/anti-static TPR tread, PP wheel core, top plate mounting and an integrated brake configuration. Compared with threaded stem casters, the plate-mounted design provides a larger mounting interface for equipment frames and trolley bases designed for bolt-on caster installation.
Available in 2.5-inch, 3-inch, 4-inch and 5-inch sizes, the series supports load capacities from 80 kg to 140 kg per caster.
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The caster uses a TPR tread developed for applications where electrostatic charge control is required.
It can be used on mobile equipment handling or supporting:
Electronic components
PCB assemblies
Testing instruments
Precision devices
Semiconductor-related products
ESD-sensitive materials
The exact electrical resistance requirement should be confirmed according to the selected product configuration and the customer's ESD control standard.
After installation, the complete trolley or equipment should be verified as part of the facility's ESD control system.
The top plate provides a broad mounting surface and allows the caster to be bolted directly to a compatible equipment base.
Compared with a threaded stem caster, plate mounting is particularly suitable when:
The equipment has a flat mounting surface
Multiple bolts are preferred for installation
A larger mounting interface is available
The caster needs to be replaced without changing the equipment frame
Industrial carts or racks already use a standard plate pattern
The mounting plate dimensions and bolt-hole spacing should be checked before ordering.
The brake allows operators to secure the caster when the cart or equipment needs to remain stationary.
This is useful for mobile equipment used during:
Assembly
Inspection
Testing
Loading and unloading
Maintenance
Temporary workstation operation
Brake configuration should be selected according to the equipment design and operating requirements.
| Specification | Details |
|---|---|
| Product Type | ESD / Anti-Static Plate Mount Caster |
| Wheel Tread | TPR |
| Wheel Core | PP |
| Wheel Color | Grey |
| Hardness | 65–70 Shore A |
| Wheel Sizes | 2.5" / 3" / 4" / 5" |
| Wheel Diameter | 63 / 75 / 100 / 125 mm |
| Tread Width | 32 mm |
| Load Height | 92 / 105 / 130 / 158 mm |
| Load Capacity | 80 / 100 / 120 / 140 kg |
| Mounting Type | Top Plate |
| Mounting Plate Size | 96 × 66 mm |
| Bolt Hole Spacing | 75 × 45 mm |
| Mounting Hole Diameter | 8.5 mm |
| Brake | Available |
| Electrical Function | ESD / Anti-Static |
| Duty Class | Medium Duty |
| Application | ESD-Sensitive Carts & Mobile Equipment |
Electrical performance should be confirmed according to the required ESD specification and applicable test method.
| Wheel Size | Diameter | Tread Width | Load Height | Load Capacity |
|---|---|---|---|---|
| 2.5" | 63 mm | 32 mm | 92 mm | 80 kg |
| 3" | 75 mm | 32 mm | 105 mm | 100 kg |
| 4" | 100 mm | 32 mm | 130 mm | 120 kg |
| 5" | 125 mm | 32 mm | 158 mm | 140 kg |
The compact 2.5-inch caster is suitable for lower mobile equipment and lighter ESD-sensitive carts.
Rated load capacity: 80 kg per caster.
The 3-inch model provides a compact overall height while supporting medium-duty equipment.
Rated load capacity: 100 kg per caster.
The 4-inch version provides greater load capacity while maintaining good maneuverability for industrial carts and workstations.
Rated load capacity: 120 kg per caster.
The 5-inch model offers the highest capacity in this series and provides easier rolling across floor joints and minor surface irregularities.
Rated load capacity: 140 kg per caster.
Correct plate matching is important for both installation and long-term caster stability.
The current mounting specification is:
Mounting Plate: 96 × 66 mm
Bolt Hole Spacing: 75 × 45 mm
Mounting Hole Diameter: 8.5 mm
Before ordering replacement casters, buyers should check these dimensions against the existing trolley or equipment.
For a new OEM project, Langyi can also review the equipment base or mounting drawing.
Plate-mounted casters are often preferred for industrial carts and equipment with a flat base structure.
The mounting plate distributes the connection across several bolts and provides a straightforward replacement interface.
Typical equipment includes:
ESD component carts
PCB handling trolleys
Mobile electronics workstations
Test equipment carts
Mobile storage racks
Assembly line fixtures
Instrument stands
Precision equipment platforms
For equipment already designed with threaded mounting holes, a thread stem ESD caster may be more appropriate.
Langyi offers both mounting configurations for different equipment structures.
| Feature | Plate Mount | Thread Stem |
|---|---|---|
| Installation | Multi-bolt top plate | Threaded connection |
| Mounting Surface | Flat equipment base | Threaded hole or frame |
| Mounting Area | Larger | More compact |
| Common Use | Carts, racks, platforms | Workstations, legs, compact frames |
| Replacement Check | Plate and hole spacing | Thread diameter, pitch and length |
The best mounting type depends on the equipment design rather than only the load capacity.
Mobile carts and racks can generate or accumulate static charge as they move through a facility.
In electronics production, uncontrolled electrostatic discharge may damage sensitive components or interfere with established ESD protection procedures.
An ESD caster can form part of a controlled discharge path between the mobile equipment and an appropriate floor system.
However, effective electrostatic control depends on the complete assembly, including:
ESD wheel
Caster housing
Mounting interface
Equipment frame
Conductive connection
ESD floor
Facility grounding system
For this reason, the finished trolley or mobile equipment should be tested after assembly according to the customer's ESD requirements.
The grey TPR tread provides a practical combination of floor-friendly movement and indoor industrial performance.
For carts and mobile equipment, TPR can provide:
Quiet rolling
Reduced impact noise
Better cushioning than hard plastic wheels
Good contact with finished industrial floors
Comfortable manual movement
This makes the caster suitable for electronics factories, laboratories, assembly areas and technical facilities where equipment is moved frequently.
A caster brake is useful when mobile equipment must remain in position after being moved.
For example, an ESD workstation may need to move between production processes but remain stationary while technicians perform assembly or testing.
The brake provides convenient positioning control for:
Workstations
Instrument carts
Component racks
Testing equipment
Assembly trolleys
The brake should be applied only after the equipment has stopped moving.
Suitable for carts and racks used to transport electronic components, PCB assemblies and production materials.
Plate mounting provides a practical solution for mobile workbenches with flat caster mounting surfaces.
Can be used on carts supporting electronic measuring and testing instruments where both mobility and static control are required.
Suitable for compatible mobile equipment operating within controlled electronics production environments.
Can be installed on mobile fixtures and carts used for assembly, inspection and handling of sensitive products.
The combination of TPR tread, plate mounting and braking can suit mobile technical equipment requiring controlled movement and positioning.
Wheel diameter affects load capacity, equipment height and rolling performance.
When selecting a caster, consider:
Equipment weight
Maximum payload
Number of casters
Floor condition
Required overall height
Movement frequency
Plate mounting dimensions
Brake requirement
Required ESD performance
Larger wheels generally roll more easily over floor joints and small obstacles, while smaller wheels reduce overall equipment height.
The rated capacity shown in the specification table refers to one caster.
For complete equipment, simply multiplying the capacity by the number of casters may not provide an appropriate design load because real equipment does not always distribute weight equally.
Load distribution can be affected by:
Uneven floors
Off-center payloads
Turning
Dynamic impacts
Floor joints
Equipment movement
A suitable safety margin should therefore be included when selecting casters.
For selection support, provide Langyi with the total equipment weight, maximum payload, number of casters and operating conditions.
ESD caster performance can be affected by contamination on the tread or interruptions in the conductive path.
For equipment used in ESD-controlled areas:
Keep wheel treads clean
Avoid insulating coatings or residues
Inspect caster mounting points
Check brake operation
Verify equipment grounding continuity
Include casters in periodic ESD testing where required
The complete mobile assembly should be maintained according to the facility's ESD control procedures.
Langyi supports caster solutions for OEM carts, racks and mobile equipment.
Customization can include:
Wheel diameter
Load capacity
Plate mounting configuration
Brake configuration
ESD / anti-static requirement
Caster combinations
OEM packaging and labeling
Customers can provide an equipment drawing, existing caster sample or mounting dimensions for evaluation.
For faster product selection, please provide:
Wheel Size: 2.5", 3", 4" or 5"
Total Equipment Weight: including equipment frame
Maximum Payload: maximum working load
Caster Quantity: number installed
Mounting Plate Requirement: confirm plate and hole pattern
Brake Requirement: according to equipment use
ESD Requirement: resistance range or applicable standard
Floor Type: epoxy, PVC, concrete or other
Application: trolley, rack, workstation or equipment
For replacement projects, photos and measurements of the existing mounting plate are also helpful.
Langyi manufactures casters, trolleys and material handling equipment for industrial and commercial applications.
This ESD plate-mounted series combines a defined mounting interface, medium-duty load capacity, TPR tread and braking options for mobile equipment used in ESD-sensitive environments.
With several wheel sizes and load capacities available, customers can select a configuration according to their equipment dimensions and operating requirements.
The current specification includes 2.5", 3", 4" and 5" wheel options.
The current plate size is 96 × 66 mm, with 75 × 45 mm bolt-hole spacing and 8.5 mm mounting holes.
Confirm these dimensions against your equipment before ordering.
This model uses a bolt-on plate mounting structure, while the thread stem version connects through a threaded stem.
Plate mounting is typically more suitable for carts, platforms and racks with flat mounting bases.
The brake helps prevent unwanted caster movement when the equipment needs to remain stationary.
The exact locking configuration should be confirmed according to the selected caster model.
The product is available in ESD / anti-static configurations. The exact electrical resistance should be confirmed according to the selected specification and customer ESD requirement.
They can form part of mobile equipment used in ESD-controlled environments, but the complete equipment must be tested to ensure that the required conductive path and resistance are achieved.
Yes. Dirt and insulating contamination on the tread can affect electrical performance, so periodic cleaning and testing may be required.
For ESD-sensitive carts, racks, workstations or mobile equipment, send Langyi your required wheel size, load, mounting plate dimensions, brake requirement and ESD specification.
Langyi can recommend a suitable 2.5–5 Inch ESD TPR Plate Mount Caster with Brake for your equipment.
