Cembre HT81-U Crimping Tool (up to 240sqmm cables)

LV-HV Cable Crimping Tools

HT81-U

Cembre HT81-U hydraulic crimping tool is a manual tool for the crimping of low and high voltage cable lugs, splices and connectors up to 240sqmm.

Cembre HT81-U crimping tool is lightweight and ideal for use on overhead lines and other LV-HV cable jointing, splicing and terminating applications. The HT81-U crimping tool features a patented closure and release mechanism for the die locking pin – a wide range of electrical connectors can be crimped with a minimal number of die sets due to their unique, double groove styling.

The Cembre HT81-U features a double speed crimping action: a fast advancing speed for rapid approach of the die sets to the electrical connector and a slower more powerful speed for crimping.

In addition, the crimp tool head is fully rotatable through 180 degrees for ease of use and comfort for the user enabling crimping in confined or restricted areas including LV-HV switchgear, substations and electrical panels. The built in safety valve also by-pass the oil supply when maximum pressure has been reached.

The hydraulic crimp tool allows for crimping of a wide range of connectors using only a small number of die sets due to their unique, double groove styling and the HT81-U tool has a pressure releasing system that can be easily operated at any stage of the compression.

The tool has two forward speeds of the ram and automatically switches from a fast advancing speed of dies to a slower crimping speed.

Cembre HT81-U crimping tool

Specification

Crimping force 80kN
Rated Operating Pressure: 700 bar (10,000 psi)
Dimensions: Length 485mm, Width handles closed 141.5mm, Width handles open 341mm
Cable Crimper Weight: 3.4kg
Oil: AGIP ARNICA 32 or SHELL TELLUS TX 32 / equivalent (Approved by Cembre)

Cembre crimping tools should be cleaned daily (or after use) with a clean cloth removing any residue in particular particles close to pivots and moveable parts. Every six months it is essential Cembre HT45-E check the oil level in the reservoir. If necessary fill oil level to the top lip and remove any excess air from the reservoir.

Dust, sand and dirt threaten the safe and reliable operation of all hydraulic crimping tools – after use the Cembre HT81-U should be cleaned with a clean cloth taking care to remove any residual especially close to pivots and movable parts.

Hydraulic crimping tool to accept ‘U’ style die sets 10sqmm-240sqmm and comes with a plastic carrying case

For storage and protection the Cembre HT81-U tool is supplied in a robust carrying case for storage of the crimping tool and up to 5 sets of die sets.

Dimensions 620x380x135mm/ 270x80x30mm

HT91-U Crimping Tool Main Applications

LV Cable Lugs Splices	C Sleeve Connectors	HV Cable Lugs Splices
240sqmm	100sqmm	200sqmm

HT91-U Dimensions

Cable Crimping Force	Length	Width	Weight
80kN	485mm	141mm	3.4kg

Cembre HT81-U Hydraulic Crimping Tools

User Instructions

Setting

With the Cembre HT81-U tool in rest position operate as follows:
Select the appropriate crimping die set for the connector to be crimped.
Press release pin and withdraw die stop pin.
Insert dies into guide way on head.
Insert die stop pin until fully located.

Before carrying out further operations make sure the die stop pin is completely inserted; a partial insertion may cause damage to the head.

Insert the conductor in the conductor.
Position the connector between the dies and ensure the correct location of the crimp.

Die Advancement

Set Cembre HT81-U tool to release position by rotating main handle; open the moveable handle.
Rotate main handle to operating position.
Operate moveable handle for lower die advancement.
This first stage rapidly closes the dies to the connector.
Make sure that dies are exactly positioned on desired crimp point, otherwise re-open dies and position the connector.

Crimping

Continue to operate the moveable handle
The Cembre HT81-U tool will automatically change over to the high pressure stage.
The ram will advance until the dies touch.
It is recommended to continue pumping until the maximum pressure valve is activated and a click is heard.

Die Opening

Rotate the main handle to release position.
Close handles completely: the ram will retract and the dies will open.

Rest Setting

Retract thoroughly the ram
Keeping handles closed, rotate main handle to rest position; the moveable handle will be locked
Store the tool in its case.

Die Replacement

Press release pin and withdraw die stop pin
Remove dies from head and insert replacement dies
Insert die stop pin until fully located.

Operating Positions

The three operating positions are identified on the main handle, which rotates relative to the reference point:

Rest position (Handles locked): lock handles together when tool is not in use
Release position: close the moveable handle against the main handle, in order to discharge the oil pressure and retract the dies
Operating position: operate the moveable handle, to build up pressure and close the dies

Cembre HT81-U Crimping Tool

Technical Specification

Cembre HT81-U Crimping Tool Specification
Width	141mm
Length	485mm
Crimping Force Developed	80kN
Type of Action	Crimp
Weight (without crimp dies)	3.4kg

Cembre HT81-U Hydraulic Crimping Tool

Cembre offer a range of crimping tools including HT51 | HT120 | HT45-E | HT131-C | HT131LN-C | HT131-UC

LV- HV Cable Crimping Applications

Cembre HT81-U hydraulic crimping tool is generally used to terminate conductors during the installation of LV cable glands (up to 240sqmm) or MV HV joints and terminations (up to 200sqmm) – this includes both Cold Shrink and heat shrink types.

Cembre - Cable Crimpers Cutters Lugs Splices

Cut & Crimp LV-HV Cables

LV Cable Lugs & Splices – up to 240sqmm cable conductors
HV Cable Lugs & Splices (11kV-33kV) – up to 200sqmm cable conductors
“C” Sleeve Copper Connectors – up to 100sqmm cable conductors

➡ For Cembre electrical connections, see Cable Crimps, Lugs & Connectors

Contact T&D to discuss crimping cables at MV-HV, including 11kV-33kV, to ensure correct Cembre tool, lug/splice and die set selection – visit battery crimping tools for repetitive crimping of cables without strain injury or worker fatigue.

Full range of battery cable cutting tools also available.

CRIMPING DIE SET GUIDE FOR CEMBRE HT81-U

Cembre provides a matched crimping system to ensure secure LV MV HV electrical connections (lugs and splices) manufactured from copper or aluminium in accordance with CE Marking and international standards – includes a full range of nest, indentor and die sets compatible with their hydraulic and battery crimping tools, all manufactured by Cembre.

Cembre Copper Tube Connectors & Cable Lugs

Copper Conductor sqmm		Connector		Hexagonal Crimp		Indent Crimp
Low str.	Flex	Terminal Lug	Through Connector	Die Set	No of Crimps	Nest	Indentor	No of Crimps
4-6		A1-M	L1-M	ME1-50	1	MA1-50	PA1-50	1
10		A2-M A2-P12	L2-M	ME2-50	1	MA2-3-50	PA5-50	1
16		A3-M A3-P14	L3-M	ME3-50	1	MA2-3-50		1
25		A5-M A5-P16	L5-M	ME5-50	1	MA5-50		1
35	25 35	A7-M A7-P20	L7-M	ME7-50	1	MA7-50	PA10-50	1
	35	A9-M		ME9-50	1	MA9-50		1
50	50	A10-M A10-P25	L10-M	ME10-50	2	MA10-50		1
	50	A12-M		ME12-50	2	MA12-50	PA19-50	1
70	70	A14-M A14-P30	L14-M	ME14-50	2	MA14-50		1
	70	A17-M		ME17-50	2	MA17-50		1
95	95	A19-M	L19-M	ME19-50	2	MA19-50		1
	95	A20-M		ME20-50	2	MA20-50		1
120	120	A24-M	L24-M	ME24-50	2	MA24-50	PA24-50	1
	120	A29-M		ME29-50	3
150	150	A30-M	L30-M	ME30-50	3
	150	A35-M		ME35-50	3
185	185	A37-M	L37-M	ME37-50	3
	185	A40-M		ME40-50 #	3
240	240	A48-M	L48-M	ME48-50	3

For crimping applications including high voltage copper connectors and high voltage cable lugs including IEC228/BS6360 conductors please contact T&D.

➡ See Cable Jointing Tools for a complete range of LV-HV-HV Tools to enable outer sheath removal, insulation removal and screen stripping from power cables operating typically at 11kV, 33kV, 66kV, 132kV and up to 400kV.