Why Choose the Cembre HP4-R Mechanical Crimping Tool?
The Cembre HP4-R (2590031) is a professional manual ratchet crimping tool designed for the precise installation of pre-insulated electrical connectors. As part of the renowned Cembre Crimpstar® Series, the HP4-R delivers consistent, repeatable crimps for industrial electrical installations, control panel manufacturing and OEM machine building.
Its precision ratchet mechanism prevents the handles from opening until the crimping cycle has been completed, ensuring every termination is correctly compressed. An integrated positioning device reduces operator effort while improving crimp quality, and the adjustable insulation crimp settings allow the tool to accommodate different insulation thicknesses.
Designed for professional electricians and industrial engineers, the HP4-R provides reliable performance, ergonomic handling and long service life for demanding electrical applications.
Key Advantages
Professional manual ratchet crimping tool for pre-insulated connectors.
Produces reliable, professional electrical terminations.
Designed for frequent industrial use.
Key Features
Cembre Crimpstar® Series.
Manual mechanical ratchet operation.
Designed for pre-insulated electrical connectors.
Ratchet prevents premature handle opening.
Adjustable insulation crimp pressure (strong, medium and light).
Integrated conductor positioning device.
Automatic release after complete crimp cycle.
Ergonomic non-slip handles.
Robust professional construction.
Crimp identification marking on completed termination.
Reliable Crimping for Professional Electrical Installations
Professional ratchet crimping tools provide controlled compression that creates secure, low-resistance electrical connections while improving installation consistency. The HP4-R is engineered to deliver repeatable crimps with reduced operator effort, making it suitable for production environments and electrical installation work.
The adjustable insulation crimp settings allow installers to optimise the termination according to conductor insulation thickness, improving both mechanical retention and electrical reliability.
Typical Applications
Industrial electrical installations.
Control panel manufacturing.
OEM machine building.
Electrical maintenance and repair.
Automation systems.
Pre-insulated terminal installation.
Technical Specifications
Series
Crimpstar®
Part Number
2590031
Product type
Manual ratchet crimping tool
Application
Pre-insulated electrical connectors
Operation
Manual mechanical ratchet
Ratchet mechanism
Automatic release after complete crimp
Insulation adjustment
Three settings (strong, medium, light)
Positioning device
Integrated
Handle type
Ergonomic coated grips
HS Code
82032000
Country of Manufacture
Italy
Frequently Asked Questions
What is the Cembre HP4-R used for?
The HP4-R is designed for crimping pre-insulated electrical connectors used in industrial and commercial electrical installations.
Does the HP4-R include a ratchet mechanism?
Yes. The ratchet prevents the handles from opening until the crimp cycle has been fully completed, ensuring consistent crimp quality.
Can the insulation crimp be adjusted?
Yes. The tool provides three insulation crimp settings (strong, medium and light) to suit different insulation thicknesses.
Who typically uses this tool?
The HP4-R is widely used by electricians, panel builders, OEM manufacturers and industrial maintenance engineers.
What are the main benefits of the HP4-R?
It provides accurate, repeatable crimps, reduced operator effort, ergonomic handling and professional-quality electrical terminations.
Trusted by Electrical Professionals Worldwide
Cembre Crimpstar® crimping tools are trusted by electricians, automation engineers and machine builders for delivering accurate, repeatable electrical connections across demanding industrial applications.
Series
Crimpstar®
Part Number
2590031
Product type
Manual ratchet crimping tool
Application
Pre-insulated electrical connectors
Operation
Manual mechanical ratchet
Ratchet mechanism
Automatic release after complete crimp
Insulation adjustment
Three settings (strong, medium, light)
Positioning device
Integrated
Handle type
Ergonomic coated grips
HS Code
82032000
Country of Manufacture
Italy
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...