HP-RTM Automatic Preforming Solution

A turnkey automated preforming line for carbon- and glass-fiber woven fabrics, preparing continuous-fiber-reinforced parts for HP-RTM molding.

Submit Your Production Goals Discuss Line Configuration

Turnkey Preforming Line

Prepare Fiber Reinforcement for HP-RTM Molding

HP-RTM (high-pressure resin transfer molding) uses high pressure to mix and inject resin into a vacuum-sealed mold preloaded with fiber reinforcement. The resin flows through and impregnates the preform, cures, and is then demolded. This automated preforming line prepares carbon-fiber and glass-fiber woven fabrics through multi-layer unwinding, cutting, heating and preforming. It supports thermoset resin matrix and continuous-fiber-reinforced products before molding. The turnkey project can cover design, manufacturing, transport, unloading, installation, commissioning and training.

Reinforcement and preform first

Define the woven-fabric reinforcement, layup, preform geometry and acceptance requirements before selecting unwinding, cutting, heating and handling interfaces.

Balance upstream and downstream capacity

Measure the cycle from entry into the station through demolding. Output per cycle depends on the mold cavity arrangement, typically one part per cycle. Daily scheduling is one shift or a 10-hour working day. Balance upstream and downstream station capacities, and confirm annual working days, availability, yield and changeovers before committing to annual output.

The line integrates multi-layer unwinding, cutting, heating and preforming for thermoset resin matrix and continuous-fiber-reinforced products. Project scope can include design, manufacture, transport, unloading, installation, commissioning and training.

Manufacturing workflow

Woven-Fabric Preparation and Preforming Workflow

Prepare the woven-fabric reinforcement for downstream HP-RTM molding. This upstream sequence covers fabric handling, cutting, heating and preforming; resin metering, injection, cure and final-part demolding belong to the separately defined molding cell.

Multi-layer unwinding

Synchronize the supplied woven-fabric layers and feeding arrangement for the selected reinforcement.

FINAL STATION ORDER, CYCLE BOUNDARY AND ACCEPTANCE CONDITIONS ARE PROJECT-SPECIFIC

Cutting and layer fixation

Cut and secure the stack using the configured cutting and ultrasonic spot-welding interfaces.

FINAL STATION ORDER, CYCLE BOUNDARY AND ACCEPTANCE CONDITIONS ARE PROJECT-SPECIFIC

Transfer to heating

Coordinate robotic handling and the fabric transfer path with the heating station.

FINAL STATION ORDER, CYCLE BOUNDARY AND ACCEPTANCE CONDITIONS ARE PROJECT-SPECIFIC

Technical specifications

HP-RTM Preforming Line — Reference Parameters

Line configuration and reference values for preparing woven-fabric reinforcement before HP-RTM molding.

Parameter	Reference specification
Industry applications	New-energy vehicle battery covers and trays; automotive structural components; aerospace parts; rail-transit components
Preforming-line cycle and capacity reference	2–4 minutes per cycle, measured from entry into the station to demolding. Output per cycle depends on the mold cavity arrangement; one part per cycle is typical. The stated daily schedule is one shift or a 10-hour working day. Approximately 100,000 preforms per year remains a supplied reference; annual working days, equipment availability, yield and production interruptions must be agreed before treating it as a production commitment.
Applicable reinforcement	Carbon-fiber and glass-fiber woven fabrics
Automation	100% automated line
Multi-layer unwinding	Up to 6 woven-fabric layers can be automatically laid and synchronized at the same time
Ultrasonic welding	Ultrasonic spot welding secures the stacked layers
Infrared heating oven	Settable from ambient temperature to 450°C; accurate temperature control and high temperature uniformity
Control system and communication	SIEMENS / AB control brands; PROFINET / EtherNet/IP industrial Ethernet real-time communication
Flash-trimming dimensional accuracy	±0.2 mm

These reference specifications are supplied for this line. The project proposal defines the final process sequence and acceptance conditions.

HP-RTM Preforming Line — Concept Illustrations

Concept illustrations only; these are not photographs of delivered equipment or customer installations.

Concept illustration of an automated HP-RTM composite preforming line with a robotic handling cell. — HP-RTM Automated Preforming Line Overview — Concept illustration — not a photograph of delivered equipment or a customer installation.

Concept illustration of a robot handling reinforcement fabric at a preforming station. — HP-RTM Robotic Preforming Station — Concept illustration — not a photograph of delivered equipment or a customer installation.

Concept illustration of upper and lower composite covers for a new energy vehicle battery. — HP-RTM EV Battery Cover Application — Concept illustration — not a photograph of delivered equipment or a customer installation.

Concept illustration of an automotive composite structural component. — HP-RTM Automotive Structural Component — Concept illustration — not a photograph of delivered equipment or a customer installation.

Concept illustration of a composite component for rail transit. — HP-RTM Rail Transit Composite Component — Concept illustration — not a photograph of delivered equipment or a customer installation.

Illustrated sequence of multi-layer unwinding, cutting, robotic picking, infrared heating, preforming, unloading and ultrasonic cutting. — Preforming process-flow diagram (process labels are illustrative; final sequence is project-specific) — Concept illustration — not a photograph of delivered equipment or a customer installation.

The confirmed cycle boundary is entry into the station through demolding. The 2–4-minute reference is a per-cycle value; output depends on the mold cavity arrangement, typically one part per cycle. The daily working arrangement is one shift or 10 hours; the duration of a different shift arrangement must be stated separately. Annual good-preform output also depends on annual working days, equipment availability, yield and changeovers, which have not yet been supplied. The approximate 100,000-per-year figure therefore remains a reference rather than a validated production commitment. The linked leaf-spring, battery-tray and B-pillar project cycles of 5, 4 and 3 minutes describe their own molding processes and cannot be substituted for this line cycle.

Project design

Coordinate the Equipment With the Process

Evaluate repeatability, handling and acceptance across the full workflow.

Reinforcement-specific preparation

Fabric layers, cutting, heating and preforming interfaces are selected for the reinforcement and preform design.

Defined downstream interfaces

Preform transfer and station capacities are coordinated with the separately specified HP-RTM molding cell.

Documented acceptance

The proposal defines cycle measurement boundaries, operating assumptions, inspection responsibilities and preform-specific acceptance.

Application evidence

Related Project Records and Industry References

Related cases describe application-specific HP-RTM molding workcells. Their finished-part cycle and performance do not establish the output of this upstream preforming line; review the separate station capacities and project conditions.

View Record

Concept illustration of heavy-Duty Composite Leaf Spring HP-RTM Line

CHINA / NEW PRODUCTION LINE (0 TO 1)

Planning questions

Frequently Asked Questions

Clarify the production route before selecting a machine.

Does high-pressure mixing specify the cavity pressure? +

Mixing/delivery pressure and cavity pressure are separate engineering quantities. The resin unit, flow path, clamp and tool must be coordinated; numeric settings are established during design and trials.

What information is needed to size the production line? +

Provide the part drawing, woven-fabric reinforcement/layup and target output. The confirmed cycle starts when the workpiece enters the station and ends at demolding. Output per cycle depends on the mold cavity arrangement, typically one part per cycle. Daily scheduling is one shift or a 10-hour working day. To validate annual output, also specify annual working days, equipment availability, yield and changeover assumptions. Coordinate downstream station capacities separately.

What is included in the equipment package? +

This page describes multi-layer unwinding, cutting, heating and preforming interfaces, with project-specific handling and ultrasonic layer fixation. Resin metering/mixing, injection, the molding press and final-part curing are a separate downstream scope unless explicitly included in the proposal.

Are cycle time and finished-product performance fixed? +

They are established for the selected material, geometry, tooling and acceptance tests. The proposal identifies target conditions and the validation needed before a final performance commitment.

Submit Your Production Goals

Share the finished product, material, target capacity, automation requirements and factory conditions to discuss a project-specific line configuration.

Product and material review Process and scope discussion

HP-RTM Automatic Preforming Solution