China Door Frame Roll Forming Machine

china door frame roll forming machine are used to produce door frames and related components through an efficient, automated roll forming process. Roll formed door frames offer durability, dimensional accuracy, and flexible production capabilities. This article provides a comprehensive overview of roll formed door frame production lines from China, covering equipment types, technical parameters, applications, specifications, suppliers, installation, operation, maintenance, and more.

Overview of China Door Frame Roll Forming Equipment

Roll forming is a continuous bending operation in which sheet or coil material is progressively formed into a desired cross-sectional profile through consecutive sets of contoured rolls. Door frames and jambs require an open cross-section profile.

China is a major manufacturer and exporter of roll forming equipment for door frame production. Key advantages of China suppliers are:

  • Cost-effective pricing and good value
  • Customization to buyer requirements
  • Quick delivery times
  • Availability of full production lines
  • Strong R&D capabilities
  • Excellent after-sales service and support

Main Types of China Door Frame Roll Formers

There are two main configurations of door frame roll forming machines from China – C-type and O-type.

C-Type Roll FormerC-shaped machine with forming rolls positioned on the top and bottom. Material is fed horizontally. Suitable for high-volume production.
O-Type Roll FormerO-shaped machine with forming rolls on the sides. Material is fed vertically. Compact footprint. Lower capacities.

Door Frame Roll Forming Machine Types Comparison

ParameterC-Type Roll FormerO-Type Roll Former
Production SpeedHigher, up to 18 m/minLower, up to 10 m/min
Production VolumeHigh-volume applicationsLower-volume batches
Material FeedingHorizontalVertical
CostHigher for heavy-duty modelsLower for basic models

Roll Forming Technology for Door Frames

  • PLC control system
  • Servo motor driven forming rolls
  • Decoiler for sheet uncoiling
  • Automatic punching units
  • Corner notching devices
  • Cut-off knives
  • Hydraulic folder for bending
  • Conveyor systems

Complete door frame production lines also integrate supporting processes like punching, notching, shearing and sawing.

Door Frame Styles Produced

  • Residential frames
  • Commercial and industrial frames
  • Steel and aluminum frames
  • Hollow metal doors
  • Fire-rated doors
  • Storm doors
  • Security doors
  • Insulated doors

Typical Sections Produced

  • Jambs
  • Headers
  • Mullions
  • Sills
  • Stiles
  • Rails
  • Glazing stops
  • Casing trim
  • Brickmould
china door frame roll forming machine
China Door Frame Roll Forming Machine 4

Applications and Uses of Roll Formed Door Frames

Roll formed door frames provide dimensional stability, durability, and design flexibility at optimized costs.

Industries and Sectors Using Roll Formed Door Frames

Market SegmentDescription
ConstructionResidential and commercial building construction
InstitutionsSchools, hospitals, public buildings
RetailStores, shopping malls, restaurants
HotelsHospitality and tourism infrastructure
IndustrialWarehouses, factories, manufacturing plants
InfrastructureAirports, metro stations, stadiums

Benefits of Using Roll Formed Door Frames

  • Consistent and precise dimensions
  • High production rates for cost efficiency
  • Custom profiles can be produced
  • Versatile material options like steel, aluminum
  • Suitable for hollow metal doors and fire-rated doors
  • Eco-friendly process with low waste
  • Powder coating can be applied for colors and protection
  • Integration with doors, hardware and glazing

Technical Specifications and Design Standards

Roll formed door frames must conform to design specifications, dimensional standards, and building codes.

Key Specifications

ParameterTypical Range
Material Thickness16 gauge (1.6mm) to 20 gauge (1mm)
Frame Width35mm to 250mm
Profile Depth32mm to 150mm
Corner JointsMitered 45-90° cuts
Maximum Length6.5m for C-type <br> 3.5m for O-type
Hole Spacing50mm increments
Hole Diameter8-30mm
Notch Height10-25mm
Notch Width8-15mm

Roll Formed Door Frame Dimensional Standards

ANSI/SDI A250.8Specifications for Standard Steel Doors and Frames
DIN 18111Tolerances for Door Leaves and Frames
EN 12519Windows and Doors – Terminology
AAMA 101Voluntary Specification for Aluminum Prime Windows and Sliding Glass Doors

Design Considerations

  • Frame strength and rigidity
  • Joint construction for stability
  • Corner notching and reinforcement
  • Hardware accommodations
  • Wall opening dimensions
  • Thermal insulation needs
  • Glazed openings
  • Fire rating requirements
  • Load deflection limits
  • Corrosion resistance

China Door Frame Roll Forming Machine Suppliers

Many manufacturers in China export high-quality roll forming machines for door frame production.

Notable China Suppliers

CompanyLocationProduct Range
Botou XianfaHebeiC-type and O-type roll formers
DingtekJiangsuFull door frame lines
Jou YuShandongAluminum and steel machines
Liuzhou GMEGuangxiUp to 1000 mm line widths
MetformShanghaiCustom roll forming solutions
ReliablewayGuangdong10+ models available

Cost and Pricing Details

  • Base price range: $5,000 to $50,000
  • Varies by speed, capacities, automation features
  • C-type machines more expensive than O-type
  • Complete production lines cost over $100,000
TypeCapacityPrice Range
Manual C-Type50 m/hr$10,000 – $15,000
Automatic C-Type120 m/hr$20,000 – $40,000
High-Speed C-Type180 m/hr$50,000 – $80,000
Manual O-Type40 m/hr$5,000 – $10,000
Automatic O-Type80 m/hr$15,000 – $25,000
  • Additional costs for shipping, installation, training
  • Spare parts, wear items incur maintenance costs
china door frame roll forming machine
China Door Frame Roll Forming Machine 5

Installation and Operation

Proper installation and operation procedures must be followed to achieve optimal performance from the roll forming equipment.

Installation Guidelines

  • Level concrete foundation with sufficient load bearing strength
  • Leave clearance for safe material loading and offloading
  • Anchor machine securely and precisely align forming sections
  • Proper connection of electrical, pneumatic and hydraulics
  • Install safety guarding around moving parts
  • Integrate conveyors and downstream cutting/bending machines
  • Calibrate sensors, controls and instruments

Operation and Usage Tips

  • Strictly follow manufacturer instructions
  • Allow proper warm-up and test runs during commissioning
  • Gradually increase speeds during initial production
  • Monitor product quality and machine parameters frequently
  • Perform trial runs before batch production
  • Balance production flow to downstream processes
  • Ensure skilled supervision and trained operators
  • Adhere to safety, maintenance and operational protocols

Maintenance and Troubleshooting

Regular maintenance and prompt troubleshooting ensures maximum working life and productivity.

Routine Maintenance Activities

InspectionDailyCheck for leaks, loose parts, unusual noises
LubricationWeeklyApply grease and oil per schedule
Machine CleaningMonthlyRemove dust, dirt and debris
Belt AdjustmentQuarterlyInspect and adjust belt tension
Forming Rolls6 monthsInspect for wear or damage, replace if required
Sensor CalibrationYearlyRe-calibrate sensors and instruments

Troubleshooting Guide

IssuePossible CausesAction to Take
Poor part quality– Worn forming rolls<br>- Misaligned rolls<br>- Improper sheet thickness– Replace damaged rolls<br>- Realign rollers and guides<br>- Use material per specifications
Excessive noise– Loose machine parts<br>- Bearing failure<br>- Roll imbalance– Tighten loose parts<br>- Replace bearings<br>- Rebalance or replace rolls
Reduced output– Low line speed<br>- Frequent downtime<br>- Material jams– Run machine at rated speed<br>- Identify and fix downtime issues<br>- Clear jams, adjust guides
  • Always consult manual and contact manufacturer for complex faults
  • Proper maintenance is key to maximize up-time and productivity

Choosing a Door Frame Roll Forming Machine Supplier

Several factors must be evaluated when selecting a roll forming machine supplier from China.

Key Considerations for Supplier Selection

FactorImportanceEvaluation Criteria
Product QualityVery HighProven quality controls, international certifications
Technical CapabilitiesHighInnovative technology, R&D investments
CustomizationHighAbility to tailor machine to needs
Production CapacityMediumSufficient capacity for order quantities
Cost and PricingHighCompetitive pricing, value for money
Lead TimeMediumReasonable delivery schedules
Service SupportVery HighResponsiveness for technical support, spare parts availability
Company ReputationHighGoodwill and trustworthiness of supplier
  • Obtain detailed technical literature on specifications
  • Require video demonstrations of machines in operation
  • Visit supplier factory if possible for inspection
  • Speak with previous clients for feedback on performance
  • Ensure local after-sales service support is available

Pros and Cons of China Door Frame Roll Forming Machines

Roll forming lines from China offer notable advantages but also have some limitations.

Advantages of China Door Frame Roll Formers

  • Cost-effectiveness, significant cost savings
  • Advanced technology comparable to western suppliers
  • High degree of customization for specific needs
  • Fast turnaround, quick delivery times
  • Availability of complete production lines
  • Hands-on technical support and field assistance
  • Convenient sourcing of spare parts
  • Shared language and easier communication

Limitations of China Door Frame Roll Formers

  • Limited quality assurance compared to western brands
  • Communication gaps arising from language barriers
  • Challenges in legal contracting and intellectual property issues
  • Difficulty in resolving disputes due to regulations
  • Lack of control and oversight during manufacturing
  • Higher perceived risk due to unfamiliarity
china door frame roll forming machine
China Door Frame Roll Forming Machine 6


China door frame roll forming machines provide automated, efficient production of door frames combined with competitive pricing. This makes them an attractive option, but careful selection of a qualified supplier is vital. By following the guidance provided here, end users can take advantage of China’s manufacturing capabilities to obtain high-performing roll forming equipment that matches their production needs and business goals. The key is finding the ideal balance between cost savings and product quality.


What are the main advantages of roll formed door frames?

Roll formed door frames offer dimensional consistency, design flexibility, fast production, and cost efficiency compared to traditional fabrication methods. The roll forming process minimizes material waste.

What thickness and grades of steel are used?

Cold rolled steel coil from 16 gauge (1.6mm) to 20 gauge (1mm) with finishes up to Galvanneal is commonly used. Grades such as CS and FS for structural and framing applications.

What about roll forming aluminum door frames?

Yes, aluminum coils from 0.7mm to 2mm thickness can be roll formed into door frames. Alloy grades like 6063 and 6005 are commonly used.

Can the profiles be powder coated?

Yes, roll formed parts can be power coated after fabricating for colors, finishes, and corrosion resistance.

What welding is required for door frame assembly?

Mitered corners of jambs and header are typically joined by MIG welding. Riveting or mechanical fastening may also be used.

How to design proper accommodations for hardware?

Reinforcing plates may need to be welded around hinge, lock, and closer locations specified by door manufacturers.

What building standards are applicable?

ASTM E283 for air infiltration testing. ANSI A250.4 for physical endurance testing. SDI 118 for steel frames. FEMA 320/361 for storm shelters.

How to reduce acoustic transmission through door frames?

Specialized seals, gaskets, and sound-dampening materials can be incorporated into frame cavities.

What maintenance is required for roll formed door frames?

Occasional touch-up painting for minor abrasions. Lubrication of weatherstripping and hardware. Periodic inspection.

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