Flange Linear Guide Block
Flange Linear Guide Block for Plate-Mounted Linear Motion Systems
DLY flange linear guide blocks are W-type linear guide carriage blocks designed with a wider mounting surface for easier fastening to machine plates, moving tables and automation structures. Compared with square-type guide blocks, flange blocks provide more flexible mounting layouts and are suitable for equipment where the block must be fixed directly to a plate or moving base.
DLY supplies flange guide blocks across HDW, EDW and RDW series. HDW is suitable for standard and heavy-duty ball-type guideway systems, EDW is used for compact low-profile structures, and RDW is selected for roller-type high-rigidity applications. Buyers can choose the correct flange block according to installation height, load requirement, rigidity demand, mounting direction and rail width.
Product Features
The main advantage of a flange linear guide block is its wider mounting surface. This structure helps the carriage connect more easily with moving plates, machine bases, automation fixtures and table structures. It is especially useful when the machine layout requires a broader fixing area than a square block can provide.
Depending on the selected series and model suffix, DLY flange guide blocks can support top mounting or bottom mounting. This gives engineers more flexibility when designing compact equipment, enclosed motion axes, plate-mounted assemblies or replacement structures with fixed mounting hole positions.
When matched with the correct linear guide rail, flange linear guide blocks can support radial, reverse-radial and lateral loads. HDW and EDW series use steel balls for smooth motion, while RDW series uses rollers for higher rigidity and heavier load requirements.
HDW, EDW and RDW Series Selection
HDW, EDW and RDW blocks all use a flange-type mounting structure, they are designed for different motion requirements. The rolling element, assembly height, load capacity and rigidity level vary by series, so the correct choice depends on the machine structure, load condition and required motion performance.
| Series | Block Structure | Rolling Element | Main Feature | Best For |
|---|---|---|---|---|
| HDW Flange Guide Block | Standard flange linear guide block | Steel balls | Higher rigidity and load capacity than compact low-profile structures | CNC machines, laser machines, automation equipment, packaging machinery |
| EDW Flange Guide Block | Low-profile flange guide block | Steel balls | Lower assembly height and shorter block length | Compact automation, semiconductor equipment, small modules, space-limited machines |
| RDW Flange Guide Block | Roller-type flange guide block | Rollers | Higher rigidity and stronger load capacity for heavy-duty axes | Machine tools, heavy-duty cutting machines, grinding machines, large gantry equipment |
General Specification Range
| Product Type | Flange Linear Guide Block / Flange Linear Rail Block / W-Type Linear Guide Carriage |
| Available Series | HDW, EDW, RDW |
| Block Structure | Flange type linear guide carriage with wide mounting surface |
| Mounting Type | Top mounting or bottom mounting depending on model suffix and series |
| Load Type | Medium load, heavy load or super heavy load depending on selected series |
| Rolling Element | Steel balls for HDW / EDW; rollers for RDW |
| Material | S55C guide rail and block body |
| Recirculator Material | PA6 / PA66 depending on guide block series |
| Accuracy Grade | C, H, P, SP, UP depending on series and order requirement |
| Typical Applications | CNC machines, automation systems, packaging machinery, semiconductor equipment, laser machines, machine tools and plate-mounted motion systems |
HDW Flange Guide Block Model Reference
HDW is the standard flange-type ball guide block series. CA and HA models are mounted from the top, while CB and HB models are used for bottom-mounting layouts. The following text table gives a quick reference for common HDW sizes; final model confirmation should follow the official dimension drawing.
| Model Group | Mounting Type | Rail Width | Load Type | Basic Dynamic Load C | Basic Static Load C₀ | Typical Use |
|---|---|---|---|---|---|---|
| HDW15CA / HDW15CB | Top / Bottom | 15mm | Heavy load | 11.38kN | 25.31kN | Small automation axes and compact plate-mounted structures |
| HDW20CA / HDW20CB | Top / Bottom | 20mm | Heavy load | 17.35kN | 37.84kN | General automation equipment and medium-size moving plates |
| HDW20HA / HDW20HB | Top / Bottom | 20mm | Super heavy load | 21.18kN | 48.84kN | Higher rigidity requirement on the same rail width |
| HDW25CA / HDW25CB | Top / Bottom | 23mm | Heavy load | 26.48kN | 56.19kN | CNC auxiliary axes, packaging and fixture movement |
| HDW25HA / HDW25HB | Top / Bottom | 23mm | Super heavy load | 32.75kN | 76.00kN | Compact machine axes requiring stronger load support |
| HDW30CA / HDW30CB | Top / Bottom | 28mm | Heavy load | 38.74kN | 83.06kN | Medium-load machine plates and automation systems |
| HDW35CA / HDW35CB | Top / Bottom | 34mm | Heavy load | 49.52kN | 102.87kN | CNC machines, laser machines and larger automation structures |
| HDW45CA / HDW45CB | Top / Bottom | 45mm | Heavy load | 77.57kN | 155.93kN | Heavy machine bases and large plate-mounted assemblies |
| HDW55CA / HDW55CB | Top / Bottom | 53mm | Heavy load | 114.44kN | 227.81kN | Large machine tools and heavy moving tables |
| HDW65CA / HDW65CB | Top / Bottom | 63mm | Heavy load | 163.63kN | 324.71kN | High-load equipment and large gantry structures |
Note: HDW-HA and HDW-HB models provide higher load ratings than the corresponding CA / CB models. Please confirm the complete drawing, preload, accuracy grade and rail length before quotation.
Top Mounting and Bottom Mounting
For flange guide blocks, mounting direction is an important purchasing detail. Top-mounting blocks are commonly fixed from the top side of the moving plate, while bottom-mounting blocks are used when the screw must be fastened from the opposite side or when upper access is limited by the machine structure.
| Mounting Type | Typical Model Suffix | Structure Meaning | Suitable Machine Layout |
|---|---|---|---|
| Top Mounting | CA / HA / SA | The block is fixed from the top side through the mounting holes. | Standard moving plates, machine tables, automation slides and open-access structures. |
| Bottom Mounting | CB / HB / SB | The block can be fastened from the bottom side depending on model design. | Compact mechanisms, enclosed structures or designs where top screw access is limited. |
Flange Guide Block vs Square Guide Block
Flange and square guide blocks are selected according to installation layout rather than only load capacity. A flange block gives a wider mounting surface, while a square block is often preferred where the machine structure needs a narrower block body.
| Item | Square Linear Guide Block | Flange Linear Guide Block |
|---|---|---|
| Mounting Surface | Narrower block body | Wider flange mounting surface |
| Installation Method | Usually mounted from top | Top or bottom mounting depending on model |
| Space Layout | Better for narrow mounting space or compact block width | Better for direct plate mounting and wider fixing area |
| Typical Series | HDH, EDH, RDH | HDW, EDW, RDW |
| Best For | Narrow mounting structures, vertical layouts and compact carriage width | Moving tables, machine plates, automation bases and wide mounting layouts |
Manufacturing and Technical Support
Flange guide block selection often depends on more than one dimension. Mounting direction, hole layout, preload, accuracy grade, rail length and application load should be checked together before production or replacement.
Linear guide block manufacturing and production support.
Quality control support for linear guide block production and inspection.
Engineering support for model checking, drawing confirmation and replacement matching.
Related Products
For other linear guide block structures, you can also check related DLY product pages.
FAQ About Flange Linear Guide Blocks
What is a flange linear guide block?
A flange linear guide block is a linear guide carriage with a wider mounting surface. It is commonly used when the carriage needs to be fixed directly to a machine plate, moving table or automation structure.
What is the difference between HDW, EDW and RDW flange guide blocks?
HDW is a standard heavy-duty ball-type flange block, EDW is a low-profile compact flange block, and RDW is a roller-type flange block for higher rigidity and heavier load requirements.
When should I choose a flange block instead of a square block?
Choose a flange block when your machine design needs a wider mounting surface, easier plate installation or top/bottom mounting flexibility. Choose a square block when the structure needs a narrower carriage width.
Can flange guide blocks be mounted from the bottom?
Some flange guide block models support bottom mounting. Please confirm the model suffix and mounting hole layout before ordering.
Can I replace only the flange block without replacing the rail?
It depends on interchangeability, accuracy grade, preload and rail condition. For replacement projects, please provide the existing block model, rail model, photos and key dimensions for confirmation.
What information is needed for quotation?
Please provide series, model number, rail width, block type, rail length, accuracy grade, preload requirement, mounting direction, quantity and application. Drawings or photos are helpful for replacement projects.
Need Help Selecting a Flange Linear Guide Block?
Send DLY your flange guide block series, rail width, rail length, mounting direction, accuracy grade, preload requirement, quantity and application. Our team can help confirm a suitable HDW, EDW or RDW flange linear guide block before quotation.
Hot Tags: Flange Linear Guide Block, China Flange Linear Guide Block manufacturers, suppliers, factory, Mgn12c Block, slide block bearing, linear bearing slide block, linear sanding blocks
