SiC & MoSi2 heating elements · made in Dengfeng, China

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01Furnace model · Zirkonzahn

Zirkonofen 600 heating element replacement (600/V2, V3, V4)

Zirkonzahn lists two MoSi2 heating elements for the Zirkonofen 600/V3 and V4 and sells the heating element singly as ERAA0331. The 600/V2 manual shows how the elements and terminal blocks come out. Send the version and a photo of the old element.

Zirkonzahn item numberERAA0331

Last updated 20 October 2026

Two U-shaped MoSi2 heating elements with thin hot zone, thicker terminals and white contact ends
Fig. 01Two U-shaped MoSi2 elements with spacers. Element type only, not a Zirkonzahn part.

Zirkonzahn documents: what they say

From Zirkonzahn’s accessories page [1], the 600/V4 and 600/V3 product pages [2][3] and the 600 / 600/V2 manual [4].

TopicWhat the document says
Heating elements2 MoSi2 heating elements on the 600/V3 [3] and 2 MoSi2 high-performance heating elements on the 600/V4 [2]; the 600/V2 manual removes “both heating elements” [4].
Maximum temperatureUp to 1700 °C (600/V4 page and 600 / 600/V2 manual) [2][4].
Item numberERAA0331 – heating element for Zirkonofen 600/700/700 Ultra Vakuum, replacement part, 1 piece [1].
Contact strapERAA0864 – aluminium contact strap with clamp, the power connector to the heating elements, 100 mm, for Zirkonofen 600 and Keramikofen 1500 [1].
Removing (600 / 600/V2)Take off the upper cover plate (8 screws), remove the 4 clamping screws from the contact strips, take the strips off the contact pins, remove both heating elements, and unscrew the ceramic terminal block with a 4 mm Allen key [4].
Terminal blockThe ceramic terminal block has to be mounted at 3.6–3.7 cm from the heating element’s end [4].
HandlingAll spare parts have to be handled carefully since they are fragile [4].
DimensionsNot published.

“Not published” means we did not find it in the documents listed under Sources; it may exist in service documents we have not seen.

Before you order

  • Note the version on the type plate: 600, 600/V2, V3 or V4 [2][3][4].
  • Decide whether you replace one or both elements; ERAA0331 is sold as 1 piece [1].
  • Check the contact straps while the elements are out; Zirkonzahn lists them separately (ERAA0864) [1].
  • Mark where the ceramic terminal block sits on the old element: 3.6–3.7 cm from the end [4].

Terminal block position

Zirkonzahn’s manual mounts the ceramic terminal block at 3.6–3.7 cm from the heating element’s end and warns of a risk of breakage when tightening it [4].

What to send for a Zirkonofen 600

  1. Version (600, 600/V2, V3 or V4) and serial number
  2. Photo of the old element next to a ruler, both legs in the picture
  3. Diameters of heating zone and terminal, e.g. 4/9 or 3/6, if you can measure
  4. Heating length Le, terminal length Lu and leg spacing a
  5. Whether you replace one or both elements
  6. Contact straps needed? Tick “accessories” in the form and say which

ERAA0331 identifies the part, not the size

Zirkonzahn lists the item number and the number of elements, but no element dimensions [1][2][3]. We read the size line from your photo and write it back to you for confirmation.

Other furnaces: dental furnace models. Measuring: MoSi2 element sizes.

How the furnace-model check works

  1. Send

    The furnace model and a photo of the old element, or its part number. Dimensions if you can measure.

  2. We check and confirm the spec

    We check the dimensions and reply in writing with the size line we read, any missing value, and whether we can supply it.

  3. You confirm the configuration

    Size, number of elements per set and, for SiC rods, how they are grouped by resistance.

  4. Production and shipping

    Production and shipping are arranged for the confirmed configuration; the quote covers that element and quantity.

Dental furnace service, dealers and labs: see dental sintering furnaces for typical situations.

Questions buyers ask

How many heating elements does the Zirkonofen 600 have?

Two: Zirkonzahn lists 2 MoSi2 heating elements for the 600/V3 and 600/V4 [2][3], and the 600 / 600/V2 manual removes both heating elements [4].

What is ERAA0331?

Zirkonzahn’s item number for the heating element for Zirkonofen 600/700/700 Ultra Vakuum, sold as 1 piece [1]. We use it to identify the part; the size comes from your old element.

Where does the ceramic terminal block go?

According to the 600 / 600/V2 manual, at 3.6–3.7 cm from the heating element’s end [4].

Are these Zirkonzahn original parts?

No. PMEXO is an independent supplier of replacement heating elements and is not affiliated with Zirkonzahn. Zirkonzahn’s manual says to use only original Zirkonzahn spare parts [4]; check your service terms with Zirkonzahn before you decide.

Sources

  1. Zirkonzahn: Sinter oven accessories
  2. Zirkonzahn: Zirkonofen 600/V4
  3. Zirkonzahn: Zirkonofen 600/V3
  4. Zirkonzahn: Operator’s and Maintenance Manual, Zirkonofen 600 and 600/V2, 2020-07-27 (PDF, hosted by Straumann). Chapter 8, “Exchange of heating elements”

Zirkonzahn, Zirkonofen, Keramikofen and the model names on this page belong to their respective owners and are used only to identify the furnace. PMEXO is an independent supplier of replacement heating elements and is not affiliated with or endorsed by Zirkonzahn. Photos show the element type, not a part of this furnace.

Request a quote

Send the part number, or a photo of the old element with the dimensions. We reply by email with the size line we read and anything missing.

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