July 13, 2026 A door manufacturer in Turkey selected a STON CNC Panel Bender and Press Brake for its sheet metal bending operations.
The project combines two types of bending equipment within the customer’s production facility. The CNC panel bender is designed for repeated multi-edge forming of sheet metal panels, while the press brake provides general-purpose bending flexibility for different workpiece sizes, materials and forming requirements.
Country: Turkey
Industry: Door Manufacturing
Equipment: CNC Panel Bender + Press Brake
Main Process: Sheet metal bending and forming
Typical Workpieces: Door panels, frames and related sheet metal components
Equipment Supplier: STON CNC
Metal door production involves sheet metal panels and structural components with different bending profiles. According to STON’s door-industry solution, door manufacturing may involve long panels, multi-step edge profiles and controlled angular forming.
Common door components may require:
These are general applications identified by STON for metal door manufacturing. The specific workpieces processed by the Turkish customer were not provided.
Because different door components can have different geometries, one type of bending machine may not cover every production requirement in the same way. The selected combination of a panel bender and press brake gives the manufacturer access to two complementary sheet metal forming methods.
STON supplied the Turkish door manufacturer with:
The CNC panel bender is intended for automated multi-edge panel forming. The press brake is designed for flexible bending with upper and lower tooling.
The supplied project information does not state how the customer allocates workpieces between the two machines. Therefore, this case study does not claim that a specific door component is processed on either machine.
Based on STON’s published product information, the equipment can generally be evaluated as follows:
| Equipment | General Role in Door Manufacturing |
| CNC Panel Bender | Repeated multi-edge forming of door panels and box-shaped sheet metal components |
| Press Brake | General-purpose bending of varied workpieces, thicker materials or parts requiring specific tooling |
STON identifies the CNC panel bender as recommended equipment for metal door manufacturing. It is designed to process multi-angle panel profiles through programmed CNC operation.
Multi-edge bending
A door panel may require several bends along different edges. The panel bender can perform multiple bending steps according to a programmed sequence.
Positive and negative bending
STON panel benders support positive and negative bends. This capability allows different edge directions to be formed without relying on the same manual handling sequence used in conventional multi-step bending.
Reduced manual repositioning
The machine controls workpiece positioning during the bending process. This reduces repeated manual rotation and repositioning between individual bends.
Programmed operation
Once the workpiece and bending program have been correctly prepared, the equipment performs the specified sequence under CNC control. This is suitable for recurring door panel designs.
Automation compatibility
STON panel benders can be connected with robotic, gantry or truss-type loading and unloading systems. No automatic handling system was included in the supplied information for this Turkish project, so it should only be treated as an optional expansion capability.
STON’s press brake range includes:
A press brake bends sheet metal between matched upper and lower tools. It is suitable for general sheet metal forming and can accommodate different workpiece geometries through the appropriate tooling and machine configuration.
STON’s CNC panel bender portfolio includes press-arm and suction-cup feeding configurations.
| Parameter | Press-Arm Type | Suction-Cup Type |
| Published bending-length range | 1,000–4,100 mm | 1,000–1,400 mm |
| Maximum stainless steel thickness | 1.2 mm | 1.2 mm |
| Maximum cold-rolled steel thickness | 2.0 mm | 2.0 mm |
| Maximum aluminum thickness | 2.5 mm | 2.5 mm |
| Bending capability | Positive and negative bending | Positive and negative bending |
| Automation integration | Available | Available |
Within a general metal door manufacturing environment, panel benders and press brakes may be evaluated for components such as:
This list describes potential applications presented by the equipment categories.
This Turkish door-manufacturing project combines a STON CNC Panel Bender and Press Brake within one sheet metal production facility.
The panel bender provides programmed multi-edge forming for recurring panel-type workpieces. The press brake provides flexible, tool-based bending for varied door components and forming requirements.
Together, the two equipment categories give the customer access to complementary bending processes. Because the available project information only confirms the country, industry and equipment combination, no unverified machine model, production result or customer-specific performance claim has been included.
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