W&H United Kingdom
* Multiflex® is a registered trade mark of Kaltenbach & Voigt GmbH, Germany
** also with other coupling versions available
*** Contra-angle handpieces of the Synea Vision Short Edition can be used on micromotors with an ISO coupling length of 23 mm or less
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Alegra Straight and Contra-angle Handpieces without light
Small head and ergonomic design
The Alegra straight and contra-angle handpieces are designed for comfortable working. Thanks to excellent ergonomics, the straight and contra-angle handpieces from W&H prevent excessive strain on your hands during preparation. The small contra-angle head allows optimal view of the treatment site.
Your advantages at a glance
- Robust and durable
- Ergonomic design
- Simple bur changing with the push-button chucking system
- Thermo washer disinfectable and sterilizable
- External coolant supply (spray clip, coolant hose, nozzle cleaner) available as accessories
Thermo washer disinfectable and sterilizableThermo washer disinfectable Sterilizable
Alegra straight and contra-angle handpieces are thermo washer disinfectable and sterilizable.
Perfect balancePerfect balance
The dental straight handpiece or dental contra-angle handpiece is comfortable in the hand and is perfectly balanced with the micro air motor.
Excellent ergonomicsFatigue-free operation
The easy 360° rotation of the Alegra straight or contra-angle handpiece on the micro air motor, the low overall weight and the slender design ensures fatigue-free operation.
![Alegra dental contra-angle handpiece WE-56]( "Alegra dental contra-angle handpiece WE-56")
WE-56
Dental contra-angle handpiece with
push-button chucking system,
for contra-angle burs with Ø 2.35 mm
(ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
WE-56
REF 30116000Contra-angle handpiece 1:1
Head size: Ø 10.1 mm
Head height (with 19 mm bur): 20.8 mm
![Alegra dental contra-angle handpiece WE-57]( "Alegra dental contra-angle handpiece WE-57")
WE-57
Dental contra-angle handpiece with
push-button chucking system,
for FG burs with Ø 1.6 mm (ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
WE-57
REF 30117000Contra-angle handpiece 1:1
Head size: Ø 10.1 mm
Head height (with 19 mm bur): 22.7 mm
![Alegra dental contra-angle handpiece WE-66]( "Alegra dental contra-angle handpiece WE-66")
WE-66
Dental contra-angle handpiece with
push-button chucking system,
for contra-angle burs with Ø 2.35 mm
(ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
WE-66
REF 30118000Contra-angle handpiece 4:1
Head size: Ø 10.1 mm
Head height (with 19 mm bur): 20.8 mm
![Alegra dental straight handpiece HE-43]( "Alegra dental straight handpiece HE-43")
HE-43
Dental straight handpiece with
twist tension chucking system, for handpiece and contra-angle burs with Ø 2.35 mm (ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
HE-43
REF 30119000Straight handpiece 1:1
An external coolant supply (spray clip, coolant hose, nozzle cleaner) for Alegra straight and contra-angle handpieces without light is available as an accessory.
Alegra Contra-angle Handpieces with LED+ light
Outer diameter of the sheath: 20 mm
More colour. More contrast. LED+
LED+ contra-angle handpieces from W&H offer an incomparably high colour rendering index (CRI). The self-generated LED light is of daylight quality, renders colours naturally and is many times brighter than a conventional halogen light.
Your advantages at a glance
- Independent sterilizable LED light
- High colour rendering index of more than 90
- Robust design
- Thermo washer disinfectable and sterilizable
Daylight quality LED+Visual clarity
A high CRI value significantly improves people‘s sense of wellbeing and ensures greater visibility.Perfect colour rendering has an index of 100. Conventional LEDs only have a CRI of between 60 and 80 and are ineffective in reproducing red tones.
LED+ contra-angle handpieces from W&H use a new technology: The result is a CRI of more than 90 which means clear colour contrasts and exceptional reproduction of natural red tones in the mouth.
Absolutely independentMicromotor on = LED+ on
The generator is integrated into the Alegra contra-angle handpieces and is completely independent. Therefore an external power supply is not required.The unique W&H LED+ generator technology ensures perfect LED+ quality, regardless of whether the dental unit, coupling or micromotor is equipped with its own light source.
Optimum preparation resultsAlegra speed-increasing contra-angle handpiece WE-99 LED G
Efficient and precise preparation – regulated finishing Optimum preparation results of your CAD/CAM restoration using the Alegra contra-angle handpiece WE-99 LED G.
![Alegra dental contra-angle handpiece WE-99 LED G]( "Alegra dental contra-angle handpiece WE-99 LED G")
WE-99 LED G
Dental contra-angle handpiece with
push-button chucking system,
for FG burs with Ø 1.6 mm (ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
WE-99 LED G
REF 10259900Contra-angle handpiece 1:4.5
LED+ light
Triple spray
Head size: Ø 10.1 mm
Head height (with 19 mm bur): 22.3 mm
![Alegra dental contra-angle handpiece WE-56 LED G]( "Alegra dental contra-angle handpiece WE-56 LED G")
WE-56 LED G
Dental contra-angle handpiece with
push-button chucking system,
for contra-angle burs with Ø 2.35 mm
(ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
WE-56 LED G
REF 10255600Contra-angle handpiece 1:1
LED+ light
Single spray
Head size: Ø 10.1 mm
Head height (with 19 mm bur): 20.7 mm
![Alegra dental contra-angle handpiece WE-66 LED G]( "Alegra dental contra-angle handpiece WE-66 LED G")
WE-66 LED G
Dental contra-angle handpiece with
push-button chucking system,
for contra-angle burs with Ø 2.35 mm
(ISO 1797-1)
Drive speed: 40,000 rpm
Motor connection according to standard: ISO 3964
WE-66 LED G
REF 10256600Contra-angle handpiece 4:1
LED+ light
Single spray
Head size: Ø 10.1 mm
Head height (with 19 mm bur): 20.7 mmDownload Area
FAQs
- Can the straight handpiece HE-43 E be used for surgical applications?
- Can LED instruments with generator be sterilized?
- Can the current range of Alegra instruments be connected to motors with a light supply?
- What are the advantages of the Alegra instruments?
- For what reason may the LED fail to light up?
- Is more heat generated by the light source when LED technology is employed?
- What is the difference between the Alegra contra-angle handpieces WE-56 T and WE-56?
- Why does the WE-99 contra-angle handpiece have a transmission ratio of 1:4.5?
Instructions for use
Find all languages of the Update Hygiene and Maintenance (EN ISO 17664:2017) in the Download Centre.
Video Tutorials
Downloads
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Alegra Straight and Contra-angle Handpieces without light
Outer diameter of the sheath: 20 mmWE-56 WE-57 WE-66 HE-43 Transmission ratio: 1:1 1:1 4:1 1:1 Motor connection according to standard: ISO 3964 Max. motor speed (rpm): 40,000 Head size: Ø 10.1 mm Ø 10.1 mm Ø 10.1 mm – Head height (with 19 mm bur): 20.8 mm 22.7 mm 20.8 mm – Rotary instruments according to ISO 1797-1: Contra-angle burs FG burs Contra-angle burs Handpiece and contra-angle burs Instrument shaft diameter: 2.35 mm 1.6 mm 2.35 mm 2.35 mm Maximum permitted bur length: 34* mm 25* mm 34* mm Handpiece burs: 50* mm
Contra-angle burs: 34* mmSpray: single, external Warranty: 12 months
* When using longer rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.
Alegra Contra-angle Handpieces with LED+ light
Outer diameter of the sheath: 20 mmWE-56 LED G WE-66 LED G WE-99 LED G Transmission ratio: 1:1 4:1 1:4.5 Colour coding: blue green red Colour rendering index (CRI): > 90 Colour temperature (Kelvin): 5,500 Luminous flux (Lumen): 5.0 Brightness (Lux): 25,000 Motor connection according to standard: ISO 3964 Max. motor speed (rpm): 40,000 Head size: Ø 10.1 mm Head height (with 19 mm bur): 20.7 mm 20.7 mm 22.3 mm Rotary instruments according to ISO 1797-1: Contra-angle burs Contra-angle burs FG burs Instrument shaft diameter: 2.35 mm 2.35 mm 1.6 mm Maximum permitted bur length: 34* mm 34* mm 25* mm Spray: single single triple Warranty: 12 months
* When using longer rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.
