Beschrijving
Retort ring with boss head, closed, Ø 70 mm is a laboratory support ring designed for mounting glassware and apparatus on retort stands. The closed ring has a diameter of 70 mm and an overall length of 70 mm, providing a compact, secure seating surface for flasks, funnels, and similar vessels during heating, distillation, or general bench work. Manufactured from stainless steel with a green finish, the component offers corrosion resistance and clear visual identification in multi-stand setups. The integrated closed boss head allows direct clamping to a standard retort stand rod without a separate clamp, simplifying assembly and reducing the number of loose parts. Supplied as a single piece from manufacturer Witeg, this ring suits teaching laboratories, research benches, and routine analytical workflows where stable, height-adjustable support is required. Its stainless construction supports repeated use under typical laboratory conditions, while the closed geometry helps retain vessels securely once positioned. Net weight is 0,135 kg per piece, making the ring easy to handle and reposition during experiment setup.
This article is part of Clamps & bossheads, in Stands, clamps & racks.
Key features
- Pack size: 1 pc
- Diameter: 70 mm
- Length: 70 mm
- Design: Closed ring with boss head
- Material: Stainless steel, green
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Questions about Retort ring with bosshead Ø 70 mm
What is this article?
Retort ring with bosshead Ø 70 mm is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Clamps & bossheads, inside Stands, clamps & racks, in Labmateriaal.
A bosshead grips the rod. A clamp grips the flask or the condenser, usually through two jaws with cork or vinyl faces. Three-finger and two-finger clamps hold different shapes. The jaw opening is the specification.
A stand, a clamp and a rack hold something still so the hands can do the work. A bosshead locks a clamp to a rod. A test-tube rack keeps tubes upright and in an order the operator can read back. The failure is almost always mechanical: the clamp slips, or the rack does not match the tube diameter. The glass they support is indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stands, clamps & racks. The sub-category is Clamps & bossheads. The catalogue is Labmateriaal.
Shelves beside this one are Test tube racks, Stands, rods & bases and Stand & rack accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.