W&H Alegra Straight & Contra-angle Handpieces
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With Alegra dental straight and contra-angle handpieces from W&H
the treatment of your patient is very efficient and extremely safe.
The Alegra straight or contra-angle handpiece is comfortable in the hand. Thanks to the 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.
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.
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| Type: | WE-56 | WE-57 | WE-66 | HE-436 |
| Transmission ratio: | 1:1 | 4:1 | 1:1 | |
| Motor connection according to standard: | ISO 3964 | |||
| Power (W): | Ø 10.1 mm | - | ||
| Head height (with 19 mm bur): | 20.8mm | 22.7mm | 20.8mm | - |
|
Rotary instruments according to ISO 1797-1: |
Contra-angle burs | FG burs | Contra-angle burs | Handpiece and contra-angle burs |
| Instrument shaft diameter: | 2.35mm | 1.6mm | 2.35mm | 2.35mm |
| Maximum permitted bur length: | 34*mm | 25*mm | 34*mm |
Handpiece burs: 50* mm Contra-angle burs: 34* mm |
| Spray: | 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.
| Type: | WE-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 | ||
| Maximum drive speed: | 40,000 min -1 | ||
| Head size: | Ø 10.1 mm | ||
| Head height (with 19 mm bur): | 20.7mm | 20.7mm | 22.3mm |
|
Rotary instruments according to ISO 1797-1: |
Contra-angle burs | FG burs | |
| Instrument shaft diameter: | 2.35 mm | 1.6mm | |
| Maximum permitted bur length: | 34* mm | 25* mm | |
| Spray: | 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.
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