KJ-6-S Double-Sided Vertical-Loading Press Brake Quick Clamp

The KJ-6-S Double-Sided Vertical-Loading Press Brake Quick Clamp is an efficient mechanical upper tool clamping solution developed for press brakes that require flexible tooling arrangements and frequent production changeovers.

Unlike a conventional single-sided clamp, the KJ-6-S provides clamping interfaces on both the front and rear sides. Compatible press brake punches can be installed in either direction, allowing multiple tooling sets with different profiles or orientations to be arranged on the same press brake.

This double-sided configuration enables manufacturers to prepare different upper tool combinations for different bending processes. When production changes from one bending operation to another, the available tooling arrangement can reduce the need to repeatedly remove and reinstall the entire punch set. This helps shorten machine setup time and improves efficiency in high-mix and multi-process sheet metal production.

Another important feature of the KJ-6-S is its vertical tool loading and unloading capability. Compatible upper punches can be inserted upward into the clamp and removed downward, eliminating the need to slide every tool segment horizontally from the end of the clamping line.

The quick-release mechanical structure supports convenient one-handed tooling changes. Operators can release, support, and remove compatible punch segments directly at the required position, making it easier to modify segmented tooling layouts or replace an individual tool without disturbing adjacent segments.

The KJ-6-S has a working height of 100 mm and a clamp width of 150 mm. Its main components are manufactured from 45# carbon steel, providing the rigidity and mechanical strength required for stable press brake upper tool clamping.

Key Features

• Double-sided press brake quick-clamping structure
• Front and rear upper tool mounting interfaces
• Supports punches installed in different directions
• Allows multiple tooling arrangements on the same press brake
• Helps reduce repeated tool changes between bending processes
• Vertical insertion and downward removal of compatible punches
• Supports convenient one-handed tool changes
• Individual tool segments can be installed or removed at the required position
• Mechanical lever-operated locking and releasing
• No hydraulic, pneumatic, or electrical power required
• 100 mm working height
• 150 mm clamp width
• Main components manufactured from 45# carbon steel
• Precision-machined mounting and positioning surfaces
• Suitable for high-mix and multi-process sheet metal production

Technical Specifications

Double-Sided Tool Clamping

The KJ-6-S provides two usable clamping faces for compatible press brake upper tooling. Punches can be mounted on the front side or rear side of the clamp according to the required tooling orientation and bending process.

By installing different tooling profiles or tool combinations in opposite directions, the press brake can be prepared for more than one bending requirement. This makes the clamp particularly useful in production environments where parts require multiple bending processes or where different products are manufactured in small batches.

The double-sided structure can help reduce complete tooling changeovers, shorten non-productive setup time, and improve the utilization of the press brake.

Multiple Tooling Setups on One Press Brake

A press brake equipped with KJ-6-S double-sided clamps can accommodate different tooling arrangements along the working length and on opposite clamping faces. This provides greater flexibility when planning multiple bending processes.

Depending on the press brake configuration and tooling compatibility, operators can prepare different punch sets for different parts or bending stages. This reduces the frequency of removing, transporting, realigning, and reinstalling tooling between jobs.

The result is a more efficient production workflow, particularly for:

• Parts requiring different punch profiles
• Multi-stage bending operations
• Small-batch production
• High-mix sheet metal fabrication
• Frequent changes between product types
• Production cells processing several part designs

Vertical Tool Loading and Unloading

Compatible upper punches can be inserted vertically from below and removed downward from the KJ-6-S. This installation method avoids sliding every tool segment horizontally from the end of the press brake.

Vertical loading is especially useful for segmented punches. An individual segment can be installed or removed directly at the required position without first removing all adjacent tooling between that position and the end of the clamping line.

This can significantly simplify tooling layout adjustments and reduce the time required to replace individual punch segments.

One-Handed Tool Change

The mechanical quick-release design supports convenient one-handed tool changing for compatible upper punches. The operator can release the clamp and remove the punch vertically while maintaining control of the tool segment.

One-handed operation helps reduce repetitive handling and can make frequent punch changes faster and more convenient. It is particularly beneficial when setting up short segmented tools for different bending lengths or part geometries.

The weight and length of each punch segment must remain suitable for safe manual handling. Heavy or oversized tooling should be changed using appropriate lifting equipment.

Mechanical Clamping System

The KJ-6-S uses a mechanical lever-operated structure. It does not require a hydraulic pump, pneumatic supply, electrical control system, or additional power circuit.

Moving the operating handle activates the clamp’s locking or releasing action. This straightforward mechanical construction provides a practical balance between fast tool changes, operational reliability, and convenient maintenance.

Compared with conventional screw-only upper tool clamps, the KJ-6-S can reduce repetitive tightening work and shorten the time required to reconfigure press brake tooling.

Productivity Advantages

The combination of double-sided clamping and vertical tool loading provides several production advantages:

• Different upper tool sets can be prepared in opposite directions
• Multiple bending processes can be arranged on one press brake
• Complete tooling changeovers can be reduced
• Individual punch segments can be replaced directly
• Side access is not required for every tool change
• Tool setup and alignment time can be shortened
• Small-batch production becomes more flexible
• Press brake availability and utilization can be improved
• Operator workload can be reduced
• High-mix manufacturing becomes more efficient

Precision and Manufacturing Quality

Accurate clamp geometry is essential for maintaining consistent punch alignment along the press brake working length. Critical mounting, locating, and clamping surfaces of the KJ-6-S are therefore precision-machined.

Key dimensional tolerances are controlled within ±0.02 mm. Parallelism and perpendicularity are maintained within 0.02 mm to support repeatable upper tool positioning and accurate alignment between the punch and lower die.

The primary 45# carbon steel construction provides the rigidity and mechanical strength required for repeated clamping operations and frequent tool changes.

Typical Applications

• CNC and conventional hydraulic press brakes
• Double-sided upper tool clamping systems
• Front- and rear-mounted press brake punches
• Vertically loaded upper tooling
• Segmented press brake punches
• Multi-stage bending operations
• High-mix, low-volume sheet metal production
• Electrical cabinets and control enclosures
• Metal doors, panels, and equipment housings
• HVAC and ventilation component manufacturing
• Stainless steel and carbon steel fabrication
• Production requiring different tooling orientations
• Press brake quick-clamping system upgrades

Tool Compatibility and Safety

The double-sided and vertical-loading functions require compatible upper punch tangs and retention interfaces. Not every press brake punch is suitable for vertical insertion, one-handed removal, or installation on both clamping faces.

Before ordering, customers should provide the press brake ram profile, mounting dimensions, hole positions, upper punch tang profile, safety groove or retention details, tooling orientation, and intended punch segment dimensions.

The tool layout, available machine space, ram movement, lower die position, and operator access should be evaluated before using multiple tooling directions on the same press brake.

Customization and Technical Support

WYS Machinery can evaluate the customer’s press brake ram, upper tooling profiles, mounting interface, and production requirements to provide an appropriate clamping solution.

Customized working heights, mounting dimensions, clamping interfaces, handle configurations, and tooling arrangements can be developed according to the press brake and application. Customers can provide machine drawings, existing clamp dimensions, upper punch profiles, product drawings, or clear installation photographs for technical evaluation.