GET A QUOTE
Cordless Electro-Hydraulic Rebar Bender

RB-25B Cordless Rebar Bender

21V Portable Electro-Hydraulic Rebar Bending Machine (#8 / 25 mm)

The RB-25B cordless rebar bender is a 21 V battery-powered electro-hydraulic tool designed for controlled bending of Grade 60 reinforcing steel up to #8 (25 mm). Its cable-free design supports mobile work on construction sites, bridge projects and reinforcement fabrication areas.

A brushless motor and hydraulic bending system provide consistent force without dependence on a nearby power outlet. The machine bends from 0° to 130° in approximately 10 seconds and can complete approximately 50 bends per fully charged battery under rated conditions.

Max. Bending Capacity
#8 / 25 mm
Designed for bending reinforcing steel up to 1 in. (25 mm) .
Capacity
#8 / 25 mm
BENDING ANGLE
0–130°
Voltage
21 V DC
NET WEIGHT
13.5 kg
21 V Cordless Hydraulic Power
Brushless Motor System
Adjustable Bending Angle
Approx. 50 Bends per Charge
CE CERTIFIED
ISO 9001
PROFESSIONAL TOOLS SINCE 2001
Product Overview

CORDLESS POWER FOR PROFESSIONAL REBAR BENDING

The RB-25B cordless electro-hydraulic rebar bender is designed for controlled bending of Grade 60 reinforcing steel up to #8 / 25 mm. Its 21 V battery platform combines hydraulic bending force, adjustable angle control and cable-free mobility for construction, reinforcement installation and infrastructure work.

Built for mobile jobsite use, the RB-25B combines a brushless motor, lithium-ion battery, high-strength bending components and an electro-hydraulic system. It delivers controlled bends from 0° to 130° in approximately 10 seconds.

01

#8 / 25 mm Bending Capacity

Rated bending capability for Grade 60 reinforcing steel up to 1 in. (25 mm), suitable for demanding construction, reinforcement fabrication and installation work.

02

Brushless Hydraulic Power

The electro-hydraulic system delivers strong, smooth and consistent bending force for controlled professional rebar work.

03

0°–130° Angle Control

Precise angle adjustment supports controlled and repeatable bends, helping reduce rework, material waste and variation during repetitive bending tasks.

04

Portable Jobsite Design

A 13.5 kg machine body, integrated grips and cordless power support practical carrying and positioning across changing jobsite work areas.

Designed for professional rebar bending. RB-25B combines 21 V cordless power, hydraulic bending force and adjustable angle control in a mobile platform for construction professionals.
VIEW TECHNICAL SPECS
Product Engineering

BUILT AROUND A PROFESSIONAL HYDRAULIC BENDING SYSTEM

Every major component of the RB-25B is engineered for mobile bending of Grade 60 rebar up to #8 / 25 mm. Its integrated construction combines an ergonomic carrying handle, high-strength bending shoe, aircraft aluminum cylinder, pressure relief valve and 21 V brushless motor in one cordless electro-hydraulic platform.

RB-25B Engineering Overview

CORDLESS ELECTRO-HYDRAULIC ARCHITECTURE

Engineered around a 21 V battery-powered hydraulic architecture for controlled bending of reinforcing steel up to 25 mm.

RB-25B cordless rebar bender engineering diagram showing handle, bending shoe, aircraft aluminum cylinder, pressure relief valve and brushless motor
RB-25B
01

Ergonomic Carrying Handle

The integrated handle provides a secure and comfortable grip for carrying, positioning and operating the bender on construction sites and reinforcement work areas.

02

High-Strength Bending Shoe

The reinforced bending shoe provides secure contact support for positioning Grade 60 rebar up to 25 mm and maintaining stable bending performance under demanding jobsite loads.

03

Aircraft Aluminum Cylinder

The aircraft aluminum hydraulic cylinder combines high strength, corrosion resistance and reduced weight for dependable cordless operation and easier handling.

04

Pressure Relief Valve

The pressure relief valve allows controlled hydraulic pressure release and bending-head retraction when required for operation, adjustment and routine service.

05

21 V Brushless Motor

The efficient brushless motor delivers stable cordless power to the hydraulic system with reduced wear and lower routine maintenance requirements than a brushed motor.

Bending System
Electro-Hydraulic
Maximum Capacity
#8 / 25 mm
Bending Angle
0°–130°
Net Weight
13.5 kg
Bending Capacity & Applications

BUILT TO BEND #8 REBAR

The RB-25B is rated for controlled bending of Grade 60 reinforcing steel up to 25 mm, with a maximum capacity of 1 in. / #8 rebar. Its 21 V cordless platform and 0° to 130° bending range support mobile construction, reinforcement installation and infrastructure work.

Maximum Bending Capacity
Ø 25 mm
#8 REBAR / 1 IN.
Rated Rebar
Up to 25 mm
Maximum Rebar
#8 / 1 in.
Bending Angle
0°–130°
Battery Voltage
21 V DC
!

Actual bending performance depends on rebar material, tensile strength, bar condition and operating environment. Always follow the product manual and specified material limits.

RB-25B rebar bender for construction
01

Construction

Cordless on-site bending of reinforcing steel for columns, beams, foundations and general reinforced concrete work.

RB-25B rebar bender for rebar fabrication
02

Rebar Fabrication

Portable bending for reinforcement preparation, prefabrication and repetitive steel-forming workflows.

RB-25B rebar bender for infrastructure work
03

Infrastructure

Suitable for reinforcement bending in foundations, tunnels, civil engineering and infrastructure construction.

RB-25B rebar bender for bridge engineering
04

Bridge Engineering

Professional on-site rebar bending for bridge construction, deck reinforcement and large infrastructure projects.

Need a different bending capacity? Compare cordless, portable and heavy-duty POWER rebar benders to select the right capacity, power source and platform for your application. Not sure which capacity or platform is right for your work? See our rebar bender buying guide for guidance on rebar diameter, steel grade, bending angle, power source and workload.

COMPARE REBAR BENDERS
Product Video

SEE THE RB-25B IN ACTION

Watch the RB-25B perform a complete electro-hydraulic bending cycle and see how its cordless design supports controlled rebar bending for professional jobsite use. For step-by-step operating guidance, see our How to Use a Rebar Bender guide.

RB-25B 21 V cordless electro-hydraulic rebar bender
RB-25B PERFORMANCE VIDEO
21 V Cordless Bending

Watch the RB-25B Bend #8 Rebar

See the complete bending cycle, angle adjustment and professional jobsite operation of the RB-25B cordless electro-hydraulic rebar bender.

Product Demonstration

RB-25B Cordless Electro-Hydraulic Rebar Bender

Max. Capacity
#8 / 25 mm
Bending Angle
0°–130°
Battery Voltage
21 V DC
Technical Specifications

RB-25B TECHNICAL DATA

Review the key technical specifications of the RB-25B cordless electro-hydraulic rebar bender, including its 25 mm Grade 60 capacity, 0°–130° bending range, 21 V DC battery system, runtime, charging time, weights and dimensions.

Product Specifications

Model RB-25B
Product Information
Model
RB-25B
Product Type
Cordless Electro-Hydraulic Rebar Bender
Power Source
21 V Lithium-Ion Battery
Bending Performance
Maximum Bending Capacity
#8 / 25 mm / 1 in. – Grade 60
Bending Angle
0°–130°
Bending Speed
10 sec
Bending System
Cordless Electro-Hydraulic
Electrical
Rated Voltage
21 V DC
Bends per Full Charge
Approx. 50 times
Charging Time
180 min
Construction & Package
Gross Weight
52.91 lbs (24 kg)
Net Weight
29.8 lbs (13.5 kg)
Machine Size (L × W × H)
23.2" (590 mm) × 4.7" (120 mm) × 8.5" (215 mm)
Packing Size (L × W × H)
26.4" (670 mm) × 10.6" (270 mm) × 12.2" (310 mm)
Certificates
CE, RoHS, PSE, KC
Package
Inner iron box; outer 7-layer corrugated cardboard box

Cordless 21 V Power Platform

RB-25B operates on a 21 V DC lithium-ion battery. Contact POWER ELECTRICAL to confirm battery and charger compatibility for your market before ordering.

REQUEST TECHNICAL DATASHEET

Battery runtime and bending performance may vary with rebar grade, diameter, temperature and operating conditions. Product specifications are subject to technical updates without prior notice. Please contact POWER ELECTRICAL for the latest technical data before ordering.

Package & Service Parts

WHAT'S INCLUDED & READY TO SUPPORT

The RB-25B is supplied as a cordless bending solution with an inner iron carrying box, lithium-ion battery and compatible charger. Replacement bending, hydraulic and cordless power-system components are available for long-term operation.

RB-25B cordless rebar bender with lithium-ion battery, charger and iron carrying box

What's Included

Standard equipment supplied with the RB-25B cordless electro-hydraulic rebar bender.

RB-25B Rebar Bender

Main cordless electro-hydraulic bending tool

Carrying Case

Protective storage and transportation box

Battery Charger

Compatible 21 V charging unit

Lithium-Ion Battery

Removable 21 V battery pack

Accessories

Service & Maintenance

Essential maintenance components for reliable long-term operation.

Bending Shoe

Replaceable rebar bending component

Hydraulic Seals

Hydraulic system service parts

Battery & Charger

Cordless power-system components

Spare Parts

Replacement Parts Available

Bending Shoe

Replacement high-strength bending component

Adjustable Set Bar

Replacement bar-positioning assembly

Hydraulic Seal Kit

Seals for hydraulic service

Battery Components

Battery and electrical service components

Hydraulic Components

Pump and hydraulic system parts

Fasteners & Hardware

Selected replacement hardware

Need help with maintenance or repair? Access repair videos or contact POWER ELECTRICAL for technical support and RB-25B replacement parts.

Downloads & Support

PRODUCT INFORMATION & TECHNICAL SUPPORT

Access RB-25B product information, cordless operating guidance, repair resources and technical support. Find battery, charging, bending and maintenance information in one place.

Frequently Asked Questions

RB-25B FAQ

Common questions about RB-25B bending capacity, battery runtime, charging, dimensions, operation, maintenance and support.

The RB-25B is rated for Grade 60 reinforcing steel up to 25 mm, with a maximum capacity of 1 in. / #8 rebar. Actual performance can vary depending on rebar material, tensile strength, bar condition and operating conditions.
The RB-25B provides an adjustable bending range from 0° to 130°. Its angle adjustment mechanism supports controlled and repeatable bends for common reinforcement applications.
Yes. The RB-25B combines a 21 V brushless motor with an electro-hydraulic system to provide controlled bending force without a power cord.
The RB-25B uses a 21 V DC lithium-ion battery and provides approximately 50 bends per full charge under rated conditions. Runtime varies with rebar size, grade, temperature and battery condition.
The RB-25B measures 565 × 120 × 215 mm and has a net weight of 13.5 kg (29.8 lbs). Its portable construction supports transport and positioning across construction and reinforcement work areas.
Routine maintenance includes checking the bending shoe, adjustable set bar, fasteners, hydraulic components, oil level, battery terminals and charger. Follow the operation manual for inspection, lubrication and service intervals.
Yes. Replacement bending components, adjustable set bars, hydraulic seal kits, battery-related components and selected repair parts are available through POWER ELECTRICAL.
Repair guidance is available through our Repair Video Guides and technical support resources. For complex repairs, contact POWER ELECTRICAL before disassembling the machine.
The RB-25B is suitable for professional rebar bending in construction sites, rebar fabrication, precast production, bridge projects and infrastructure work. Its cordless electro-hydraulic design supports controlled bending of Grade 60 reinforcing steel up to #8 / 25 mm where jobsite mobility and repeatable angle control are required.

Still have a question about the RB-25B?

Send us your required rebar size, battery configuration, application or technical question and our team will help you select, configure or support the correct product.

CONTACT SUPPORT
POWER ELECTRICAL

NEED THE RIGHT REBAR BENDING SOLUTION?

Tell us your required rebar size, bending angle, power source and order quantity. Our team can help you select the right cordless, portable or heavy-duty rebar bender for construction, distribution or OEM projects.

OEM & Distributor Cooperation Available

Talk to Our Product Team

Contact POWER ELECTRICAL for product selection, distributor pricing, technical information and international supply inquiries.

Since 2001
Professional Tool Manufacturing
120+
Countries & Regions
30+
R&D Professionals
OEM / ODM
Global Cooperation
Scroll to Top