Servo-Hydraulic Precision Bender

DHAC-BB-H CNC Busbar Bending Machine

Name: CNC Busbar Bending Machine
Brand: DH CNC
SKU: DHAC-BB-H

Servo-Hydraulic | Flat · Vertical · Twist · Z/U-Bend

A dedicated servo-hydraulic busbar bending center for flat, vertical, twist and compact U-bends. Match the 400 kN rating and tooling envelope to the largest copper or aluminum part, then confirm angle repeatability with buyer-supplied samples during FAT.

Certification

ISO 9001

Bending Accuracy

±0.2° Published

Bending Speed

0-5 m/min

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BENDER: DHAC-BB-H PRODUCTION BROADCAST

Request Feasibility Audit

* In-stock DHAC-BB-H servo-hydraulic bending machine factory demonstration.

DHAC-BB-H Sourcing Summary

The DHAC-BB-H is a dedicated closed-loop servo-hydraulic bending platform with published ±0.2° bending accuracy, ±0.02 mm Y-axis repeatability and low-profile tooling for U-bends down to a 40 mm inner width. It is positioned for switchgear, transformer and compact rigid-busbar work that benefits from controlled springback recipes, repeat programs and a dedicated bending cell.

HARDCORE TECHNICAL SPECS & DIES

What Technical Specifications Define the DHAC-BB-H Servo-Hydraulic CNC Bending Machine?

Cross-reference our rigid bending tolerances on the right while exploring specialized custom tooling configurations on the left.

Custom Bending Die Sets Library

SPECIALIZED BENDING DIES SHOWCASE

Our pre-calibrated proportional valves allow you to swap heavy-duty bending tools quickly to adapt for EV batteries or high-power distribution lines.

1. Flat Bending Die Set

Standard ±0.2° flat vertical angle bends on heavy sheets.

2. Vertical Bending Set

Precision edge upright bends for tight busbar cabinets.

3. Twisting Bending Die

Custom twisting dies for complex overlapping grids.

4. Compact 40mm U-Bend

EV battery connection bar punch with ultra-thin profiles.

BENDING PRECISION GUARANTEES

ANTI-PITFALL BENDING COMPLIANCE CHECK

Automatic Springback Angle Offset: Optical scales measure cylinder contact force to offset temperature drift automatically.
Siemens Proportional Servo Control: Ensures stroke travel repeatability accuracy is locked within ±0.02mm.
Taiwan HIWIN Guides & Bearings: Guide slider positioning limits remain drift-free under stress loads.

Equipment Customization Guide

Our direct-factory procurement plan for the DHAC-BB-H ensures rapid returns. The final FOB, CIF, or DAP custom invoice is tailored based on:

AC Servo Configuration: Single or dual axis closed-loop servo controller systems.
Local Plant Voltage Configuration: Custom-wound motor grid matches (e.g. 220V/60Hz, 440V/60Hz, 480V/60Hz).
Custom Die Configurations: Specialized twist-bending, custom tight U-bend parameters, or custom corporate embossing engraving blocks.

DHAC-BB-H Specifications

Verification standard: ISO 9001:2015

Nominal Force 400 kN

Bending Accuracy ±0.2°

Y-Axis Repeatability ±0.02 mm

Min U-Bend Inner Width 40 mm

Flat Bending Capacity (W×T) 200 × 15 mm

Vertical Bending Capacity (W×T) 125 × 15 mm

Max Bending Angle 90°

Max Punch Stroke 250 mm

Side Stop Travel (X-Axis) 1,200 / 2,000 mm

X-Axis Max Travel Speed 50 m/min

Y-Axis Bending Speed 0 - 5 m/min

Y-Axis Servo Motor Power 5.5 kW

X-Axis Servo Motor Power 0.75 kW

Total Installed Power 8.0 kW

Total Machine Weight 2,100 kg

Machine Dimensions 2,900 × 1,350 × 1,850 mm

Claim DHAC-BB-H Bending Plan

How Does DH CNC Solve Common Busbar Bending Production Bottlenecks?

How DH CNC offsets physical springback and clearances through intelligent design and Siemens controllers.

PAIN POINT: Angular Deviation due to Fluid Temperature & Thickness Variations

Standard hydraulic benders drift by ±1.0° to ±1.5° as hydraulic fluid heats up during operations, or when copper sheets vary in hardness. This leads to rejected parts and arcing issues in final distribution cabinets.

DH CNC SOLUTION

Real-Time Springback Compensation. The DHAC-BB-H uses high-precision proportional valves coupled to optical glass scale encoders. The Siemens PLC dynamically measures cylinder contact force to calculate sheet thickness resistance, adjusting stroke displacement to ensure ±0.2° accuracy.

PAIN POINT: Inability to Make Compact Bends for New Energy / EV Applications

Modern electric vehicle (EV) battery packs and compact UPS boards demand ultra-tight clearances. Traditional benders are blocked by large mechanical clearance limits (minimum 50mm+ inner widths).

DH CNC SOLUTION

Compact U-Bend Tooling. Our custom-milled ductile iron bending block and thin-profile punch allow operators to execute compact U-bends down to 40mm inner width without crushing the copper.

PAIN POINT: Disconnected Cutting and Bending Workflows

Drafting punch patterns on one software and bending angles on another opens up opportunities for manual input mistakes, resulting in offset holes and structural mismatch during cabinet assembly.

DH CNC SOLUTION

Unified Data Platform. The DHAC-BB-H shares an identical software database with our DHCNC-BP-60 Punching Workstation. Coordinates are computed once and transferred, eliminating error accumulation.

Which Industrial-Grade Components Power the DHAC-BB-H?

Industrial-grade elements sourced strictly from globally verified Siemens, Inovance, HIWIN, Atos, and NSK supply chains.

Control System Components

Central PLC Siemens (Germany)

Contactors & Overloads Siemens (Germany)

Operator Panel Custom Touch HMI Industrial PC

Servo Motor System Inovance Closed-Loop (X & Y)

Sensors & Limiters Siemens / Omron

Drive System Components

Linear Guides Taiwan HIWIN

Ball Screws Taiwan HIWIN / TBI

Drive Sliders TBI Precision Grade

Shaft Bearings Japan NSK

Hydraulic Components

Solenoid Valves Italy Atos (Proportional)

Hydraulic Pump USA Albert

High-Pressure Hose Germany Imported

How Does the DHAC-BB-H Compare Against Traditional Hydraulic Bending Machines in Total Cost of Ownership?

Compare the DHAC-BB-H against legacy induction benders. Make an informed procurement decision.

On a narrow screen, scroll the table horizontally. Keyboard users can focus the table region and use the arrow keys.

How Does the DHAC-BB-H Compare Against Traditional Hydraulic Bending Machines in Total Cost of Ownership?
Performance Metric	DHAC-BB-H Solution	Traditional Bending Machines
Bending Angle Precision	±0.2°	±0.5° to ±1.5°
Y-Axis Repeatability	±0.02 mm	±0.05 mm to ±0.15 mm
Minimum U-Bend Inner Width	40 mm	50 mm to 65 mm
Bending Drive Technology	Energy-efficient Servo-Hydraulic Proportional	Standard High-Consumption Induction Hydraulic
Main Controller System	Siemens Industrial PLC	Standard Basic micro-controller boards
Software Integration	Unified 3D Platform (shared with Punching)	Standalone basic G-code HMI

What Is the Operator Learning Curve, ROI, and Global Application Scope of DHAC-BB-H?

An engineering-first evaluation of the DHAC-BB-H servo bender's business impact on switchboard manufacturing, energy efficiency, and grid integration.

4-Hour Operator Learning Curve

Standard hydraulic benders require highly skilled operators to constantly adjust cylinder stroke limits and manually gauge angle deformation to offset copper springback.

The DHAC-BB-H bending workstation integrates a high-resolution AC servo backgauge and automatic springback angle compensation. New operators simply import DXF/STEP CAD parameters directly into the touchscreen. The system auto-calibrates folding cycles, allowing standard workers to produce perfect ±0.3° bends within 4 hours of training. For a deep engineering dive on how this works, read our Precision Bending Guide: Managing Copper Springback in Electrical Manufacturing. For tonnage calculations across different copper thicknesses and V-die configurations, see our Bending Force and Tonnage Calculations Guide.

Up to 40% Energy Savings & Low Maintenance

Equipped with a proportional servo-driven hydraulic system, the DHAC-BB-H consumes electrical energy only during active cylinder strokes. This cuts utility power bills by 35-40% compared to legacy continuous-induction motor pumps.

The unified monoblock cast ductile iron frame prevents transit calibration drift, saving $3,000-$5,000 in external technician startup calibration fees at your plant floor. Robust oil seal systems extend component life cycles, driving long-term operational cost reduction.

Switchboard & Grid Compatibility

Specifically designed for medium-to-heavy power transmission grids (switchgear panels, distribution substations, control boxes, battery terminals, and industrial transformer connections).

To ensure zero electrical startup bottlenecks, motor coils and proportional valves are pre-calibrated to your regional industrial power grid—supporting 220V/440V 60Hz (Mexico & LATAM), 480V 60Hz (USA & Canada), and 380V/400V 50Hz (Europe, Asia, Middle East). Shipped in seaworthy vacuum rust-barrier barrier bags.

Visual Quality & Interface Verification

First-hand inspection of actual machined samples, custom bending test profiles, and finished copper pieces.

High Precision Copper Bending Angle Sample

U-Bend Precision Sample

Compact 40mm inner width U-bend showing clean deformation without structural cracking on heavy T2 copper.

Multi-Angle Busbar Layout

Complex multi-bend connection piece featuring consistent springback control within strict ±0.2° mechanical tolerance limits.

Flat and Vertical Bending Finished Sample

Vertical & Twist Bends

Finished distribution cabinet copper bar illustrating robust vertical offset bends without surface shearing or thinning.