C-Frame Cold Preforming Press
Han Chang’s C-frame cold preforming press compacts suitable phenolic-bonded friction mixes at room temperature into brake pad green blanks for downstream hot pressing and curing.
Machine advantages
Operators load and distribute the charge, the press compacts it, and the blanks are removed for downstream hot pressing and curing.
Choose the open C-frame layout when your team needs direct access for powder loading, blank removal and mold cleaning. A dedicated preforming station lets you move prepared blanks rather than loose charges between operations, organize hot-press supply by batch, and plan feeding and handling additions in stages.
Keep routine mold work within reach
Open C-frame access serves the tasks repeated around every pressing cycle: placing powder, distributing the charge, removing blanks and cleaning the mold. It is a practical layout for manually served preforming stations where tooling access matters throughout the shift.
Hand over preforms, not loose charges
Cold-compacted blanks can be grouped around the next hot-press load and supported for transfer. Preparation and molding teams gain a defined intermediate part to count, move and load, making the handoff between stations easier to organize.
Give preparation its own workstation
Separate powder preforming from heated curing so the two operations can have their own work allocation. Match preparation labor and blank supply to hot-press demand when adding equipment or reorganizing an existing brake pad production line.
Build handling into the layout in stages
Start with the manual loading and removal arrangement you need today, while discussing future feed direction, blank support and transfer routes. Considering space for neighboring equipment and guarding during press selection supports a staged approach to the preforming station.
Cold preforming process
Meter, load and distribute the mix
Prepare the friction mix to the intended formulation and measure the charge for each mold load. The operator places the powder in the cold mold and distributes it for pressing.
Compact at room temperature
The hydraulic press applies force to compact the powder in the mold into a green blank. This cold stage gives the material a preform shape for removal and transfer.
Remove and support the blanks
The operator removes the formed blanks, supports and places them for handling, and clears the mold for the next charge.
Transfer to hot pressing
Group the blanks for the required hot-press load and transfer them to the next station for hot pressing, curing and the subsequent product-specific operations. The cold press produces an uncured intermediate, not a finished brake pad.
Materials and production applications
Brake pad blanks before hot curing
For brake pad manufacturing routes that use cold preforming before hot pressing, this station turns a powder charge into a blank that can be transferred and loaded into the downstream mold.
Cold-preformable friction compounds
Use phenolic-bonded friction powder mixes formulated for cold preforming. For semi-metallic or ceramic formulations, establish conditions with the actual mix and trial blanks, checking filling, intact demolding and sufficient green strength for transfer to hot pressing.
A separate preparation stage for an existing line
Add dedicated preforming when hot-press operators also prepare charges, or when blanks need to be supplied from a separate station. Configure the cold stage around your current hot-press demand and the route between the two operations.
Companion hot-press reference specifications
C-frame cold-press force, working-table size, daylight and stroke are selected around the blank and tooling configuration, including charge depth, mold support and removal space. The tables below are selection references for companion hot presses, not specifications of this C-frame cold press. Their heater capacities apply to the downstream hot-press equipment.
Downstream hot press reference | Spec / Type HCBR-100
| Clamping force (Ton) | 100 |
|---|---|
| Plate size (m/m) | 540×605 |
| Cylinder diameter (m/m) | 265 |
| Stroke (m/m) | 460 |
| Daylight (m/m) | 690 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 5 |
| Heater capacity (Kw) | 10.6 |
| Oil reservoir capacity (gallon) | 100 |
| Machine size LxWxH (m/m) | 1940x1200x2370 |
| Net weight approx (kg) | 3700 |
Downstream hot press reference | Spec / Type HCBR-150
| Clamping force (Ton) | 150 |
|---|---|
| Plate size (m/m) | 660×620 |
| Cylinder diameter (m/m) | 300/315 |
| Stroke (m/m) | 480 |
| Daylight (m/m) | 700 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5 |
| Heater capacity (Kw) | 10.6 |
| Oil reservoir capacity (gallon) | 100 |
| Machine size LxWxH (m/m) | 2030x1350x2370 |
| Net weight approx (kg) | 4000 |
Downstream hot press reference | Spec / Type HCBR-200
| Clamping force (Ton) | 200 |
|---|---|
| Plate size (m/m) | 660×620
720×720 |
| Cylinder diameter (m/m) | 368 |
| Stroke (m/m) | 500 |
| Daylight (m/m) | 820 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 10 |
| Heater capacity (Kw) | 15.2 |
| Oil reservoir capacity (gallon) | 120 |
| Machine size LxWxH (m/m) | 2300x1350x2670 |
| Net weight approx (kg) | 4500
6000 |
Downstream hot press reference | Spec / Type HCBR-250
| Clamping force (Ton) | 250 |
|---|---|
| Plate size (m/m) | 720×720 |
| Cylinder diameter (m/m) | 400 |
| Stroke (m/m) | 520 |
| Daylight (m/m) | 810 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 10 |
| Heater capacity (Kw) | 18.8 |
| Oil reservoir capacity (gallon) | 150 |
| Machine size LxWxH (m/m) | 2410x1350x2780 |
| Net weight approx (kg) | 6800 |
Downstream hot press reference | Spec / Type HCBR-300
| Clamping force (Ton) | 300 |
|---|---|
| Plate size (m/m) | 630×630
720×720 900×860 |
| Cylinder diameter (m/m) | 450 |
| Stroke (m/m) | 560 |
| Daylight (m/m) | 810 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 15 |
| Heater capacity (Kw) | 20 |
| Oil reservoir capacity (gallon) | 200 |
| Machine size LxWxH (m/m) | 2480x1490x2945 |
| Net weight approx (kg) | 6500
7500 9500 |
Downstream hot press reference | Spec / Type HCBR-400
| Clamping force (Ton) | 400 |
|---|---|
| Plate size (m/m) | 630×630 |
| Cylinder diameter (m/m) | 500 |
| Stroke (m/m) | 560 |
| Daylight (m/m) | 950 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 15 |
| Heater capacity (Kw) | 27 |
| Oil reservoir capacity (gallon) | 250 |
| Machine size LxWxH (m/m) | 2580x1500x3800 |
| Net weight approx (kg) | 6800
8000 10000 |
Downstream hot press reference | Spec / Type HCBR-500
| Clamping force (Ton) | 500 |
|---|---|
| Plate size (m/m) | 800×800
900×900 |
| Cylinder diameter (m/m) | 560 |
| Stroke (m/m) | 580 |
| Daylight (m/m) | 1000 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 15 |
| Heater capacity (Kw) | 30 |
| Oil reservoir capacity (gallon) | 250 |
| Machine size LxWxH (m/m) | 2810x1705x3135 |
| Net weight approx (kg) | 10000
13500 |
Downstream hot press reference | Spec / Type HCBR-600
| Clamping force (Ton) | 600 |
|---|---|
| Plate size (m/m) | 1000×1000 |
| Cylinder diameter (m/m) | 620 |
| Stroke (m/m) | 610 |
| Daylight (m/m) | 1020 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 20 |
| Heater capacity (Kw) | 30 |
| Oil reservoir capacity (gallon) | 300 |
| Machine size LxWxH (m/m) | 3000x1750x4100 |
| Net weight approx (kg) | 14000
16500 |
Downstream hot press reference | Spec / Type HCBR-800
| Clamping force (Ton) | 800 |
|---|---|
| Plate size (m/m) | 1800×1400 |
| Cylinder diameter (m/m) | 700 |
| Stroke (m/m) | 700 |
| Daylight (m/m) | 1060 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 30 |
| Heater capacity (Kw) | 40 |
| Oil reservoir capacity (gallon) | 355 |
| Machine size LxWxH (m/m) | 3220x1850x4350 |
| Net weight approx (kg) | 26000 |
A product photo, blank drawing or existing mold information is enough to start the selection discussion. Tool dimensions, loose charge depth and the number of cavities pressed together help define force and access requirements; you do not need to select the tonnage beforehand.
Equipment integration and technical discussion
Han Chang can discuss the cold stage alongside your blank size, parts required per hot-press load and existing equipment. This connects preform preparation to curing demand rather than treating the cold press as an isolated purchase.
Feeding connections, blank support and handling can be included in the configuration discussion. Where additional equipment is required, define charge metering, transfer arrangements, control interfaces and guarding in the quotation so the press and surrounding equipment have clear responsibilities.
Use current preparation work, blank-transfer arrangements and hot-press waiting time to choose the equipment scope. A manual station or staged handling additions can be discussed around that need, without making a complete automated line the starting requirement.
Buyer questions
Why choose a C-frame for brake pad preforming?
Manual preforming involves repeated access for powder loading, charge distribution, blank removal and mold cleaning. The open C-frame makes these tooling tasks accessible and allows operators to observe filling and removal. Plan the access route together with appropriate guarding around the mold area.
Does this cold press replace a brake pad curing press?
No. It compacts friction powder at room temperature into an uncured green blank. Downstream hot pressing provides the heat needed for resin curing and the backing-plate bonding operation required by the product route. Preforming and curing perform different jobs in the line.
How is cold-press tonnage selected?
Selection starts with the formulation’s required compaction pressure and the total projected area being pressed at the same time, then accounts for cavity arrangement and tooling load conditions. One pad’s length and width are not enough. Material compaction pressure must also be distinguished from hydraulic system pressure.
How do cavity count and mold size affect press selection?
More cavities can increase both the total area under load and the mold footprint, changing force and table-support requirements. Daylight and stroke must also accommodate the loose charge depth, tooling movement and blank removal. A mold fitting on the table does not by itself establish that the press is suitable.
How should preform output be matched to the hot press?
Use the number of blanks consumed per hot-press load and its actual cycle time, then include cold-stage loading, compaction, removal, cleaning and transfer in the workload. Organize staffing and batch supply around both stages. If hot curing is the bottleneck, faster preforming alone will not deliver a proportional increase in finished output.
Can we begin with manual loading and add handling later?
A staged configuration can be discussed. Establish the manual loading and removal station first while considering future feed direction, blank support, interfaces and guarding space. Specific automated mechanisms and control interfaces are defined in the project scope rather than assumed to be standard with every press.
Are the listed tonnages and heater ratings for this cold press?
No. The tables describe companion hot presses for downstream equipment selection. The C-frame cold press has its own force, working-table, daylight and stroke requirements, selected for the intended blanks and tooling. Hot-press table values must not be used as its specifications.
What do you need for a quotation, and what should the price cover?
Start with available product or blank photos, drawings, material information or details of your existing cold or hot press. Add mold dimensions, cavity count and production requirements when available. Compare quotations on the same scope: press, cold tooling, feeding and removal, guarding, control interfaces and site electrical requirements, not the press price alone.
Start with your blank photo or product drawing
Send Han Chang the product or preform information you already have to begin a C-frame cold-press quotation. Existing material, tooling or hot-press details can help shape the discussion around a practical preforming station and its downstream connection.
Related technical information
- Brake pad hot press equipment FAQ
- Friction material hot press planning
- Brake pad machine tonnage from 100T to 800T
- Brake pad molding defects and yield
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