SPB Series:
Servo Controlled CNC Press Brake
High Dynamic Response. 40% Energy Savings.
Engineered for modern, high-volume fabrication floors, the SPB Series represents the next step in automated sheet metal bending. By integrating high-frequency valve control technology with a fully servo-driven main motor, the SPB Series delivers exceptional dynamic response and a repeatability precision of ±0.01.
Designed to lower your operational overhead and ensure your production and orders overflow, this machine bridges the gap between raw bending power and intelligent energy management.
Why the SPB Series is the
Ultimate Fabrication Asset
The Servo Motor Advantage
Unlike conventional press brakes that run continuously, the SPB Series features a servo-type main motor that only operates when the pedal is pressed. This flexible motor speed adjustment drastically reduces hydraulic overflow, lowers oil temperature, minimizes ambient factory noise, and delivers energy savings of up to 40%.
Motorised Crowning for Perfect Angles
To combat natural machine deflection during heavy tonnage bends, the lower worktable is equipped with a motorised crowning device controlled directly through the CNC interface. Combined with a wedge compensation device on the upper tool, it ensures absolute precision and parallelism (0.02) across the entire bending length.
A Frame Built for Decades
True to GMT Engineers’ legacy of durability, the SPB Series utilizes an overall welded and stress-relieved structure. This guarantees that the machine frame resists deformation under maximum load, securing your investment and maintaining high precision over years of continuous mass production.
The High-Demand Mid-Range
110
Tons
1100 KN
135
Tons
1350 KN
170
Tons
1700 KN
220
Tons
2200 KN
While the SPB Series framework supports capacities from 50 Tons up to 300 Tons (500 KN to 3000 KN), these specific mid-range powerhouses are engineered to handle continuous shift work without structural fatigue.
Technical Deep Dive
Advanced Axis Configuration (4+1+2)
While many MSMEs and procurement managers enter the market searching for a standard 6 axes machine, the SPB Series actually operates as a comprehensive 4+1+2 axis machine designed to maximize floor throughput. The standard configuration includes 4 fully integrated CNC axes (Y1, Y2, X, and R). It is further augmented by 2 axes utilizing motorized adjustment via joystick (Z1 and Z2), plus 1 motorized crowning axis controlled directly through the interface for anti-deflection.
Intelligent 2D Controller Interface
The SPB is equipped with an advanced, highly intuitive CNC interface that allows operators to conduct 2D part drawing programming directly on the console. It supports seamless switching between angle and depth programming, accommodates a 200-product library, and features the generation of large arcs.
High-Precision Rear Stopper Mechanics
To guarantee exact positioning precision across thousands of cycles, the rear stopper operates on imported ball screws and linear guides. This ensures that every single workpiece meets strict quality control tolerances.
Intelligent 2D Controller Interface
The advanced CNC controller supports 2D part drawing programming, seamless angle/depth switching, a 200-product library, and large arc generation.
2D Part Drawing
Direct on-console programming
200+ Product Library
Store & recall bending programs
Angle / Depth Mode
Seamless switching between modes
Large Arc Generation
Complex curved bending support
Machine Specifications
| Feature | Specification Range |
|---|---|
| Capacity (Tonnage) | 50 Tons to 300 Tons (500 KN - 3000 KN) |
| Max. Bending Length | 1600 mm to 4000 mm |
| Slide Stroke | 150 mm to 250 mm |
| Max. Shut Height | 460 mm to 530 mm |
| Axis Configuration | 4+1+2 Axis Machine |
| Standard CNC Axes | Y1, Y2, X, R |
| Motorized Joystick Axes | Z1, Z2 |
| Controller | Advanced CNC (with 2D Programming) |
| Crowning System | Motorised (Lower) + Wedge (Upper) |
Tooling & Automation Readiness
Versatile Tooling Optimization
Depending on your tonnage requirements, the SPB Series is optimized for versatile die usage. For capacities from 50T to 200T, it is recommended to use double face 2V dies (V8, V12, V16, V25). For heavier 250T to 300T applications, the machine perfectly accommodates 4V dies (90mm x 90mm).
High-End Component Sourcing
The SPB Series is built with globally trusted components to ensure maximum uptime, including Schneider electricals (France), NOK seal rings (Japan), First gear pumps (USA), and ReboTech hydraulic systems.
Frequently Asked Questions
01Is the SPB Series a 6-axis CNC press brake?
The SPB Series functions as a comprehensive 4+1+2 axis machine, which directly rivals traditional 6 axes machines. It features 4 standard CNC axes (Y1, Y2, X, R), 2 motorized joystick axes (Z1, Z2), and 1 motorized crowning axis integrated into the controller.
02How much power does a servo-controlled press brake save?
Because the servo-driven main motor operates only when the foot pedal is pressed, the SPB Series delivers energy savings of up to 40% compared to conventional press brakes that run continuously.
03How does the SPB Series handle machine deflection?
The machine features a dual-system approach: a motorised crowning device on the lower worktable and a wedge compensation device on the upper tool. This guarantees a repeatability precision of ±0.01 and a parallelism of 0.02.
04What are the most popular tonnages for the SPB Series press brake?
While the framework supports capacities from 50 Tons up to 300 Tons, the highest-demand mid-range models are the 110-Ton, 135-Ton, 170-Ton, and 220-Ton configurations. These specific machines are engineered for continuous shift work in high-volume job shops to guarantee that production and orders continuously overflow.
Engineered for Decades of Absolute Accuracy
Move from manual processing to automated CNC precision with the SPB Series.