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99% 97% 95% Magnesia Magnesium Oxide Mgo Ceramic Crushable Tubes for Heating Elements


Product Description






We use high pure fused magnesia as raw material,made by high-pressure automatic extrusion and fired in a 1700-degree tunnel pushing plate cellar furnace with high density (2.3g /ml). The level of its insulation and withstand voltage products has been continuously improved.

Currently we can produce various kinds of single-hole, double-hole, four-hole, five-hole, six-hole, eight-hole, and nine-hole
porous magnesium oxide tubes with an outer diameter of 2.0mm-25mm,and we can also produce according to customer requirements.

Use: armored wire, armored heater.






Detailed Images




  • Multi Hole Mgo



Length and surface
Two big holes and two small holes


Size Information


It is used for high-power single-ended electric heating pipes and hot runners, etc. It has the advantages of insulation, pressure resistance, and good heat transfer effect.

Various kinds of single-hole, double-hole, four-hole, five-hole, six-hole, eight-hole, and nine-hole porous magnesium oxide tubes with an outer diameter of 2.0mm-25mm,and we can also produce according to customer requirements.


Solid mgo rod:
OD 3-16mm,L 200mm
18×200
20×200
other size customized
Single hole:
4.7×2.8
5.6×3
6.5×3.4
7×4,8×5,9×6,10×6.5,ect
2 holes:
6×1.8,7×2,9×3
11×3.3
13×4,15×5,17×5
18×6,20×6
3 holes
4 holes
7 holes
8 holes
mgo head and bottom


Manufacture Specification




Best Selling




Recommending Styles


White color
Yellow color
Yellow spacer


Company Introduction


Shanghai Yunnuo Industrial Co., Ltd. is located in Shanghai,China. Our team at yunnuo has the experience to assist you in producing the required items made of hard metal and technical ceramic that will fulfill your most stringent requirements.


Our Services & Strength

1)Seasoned export operation.
2)We focus on higher quality and excellent service.
3)In-time delivery.
4)We have experted engineer and QC.
5)Superior technical problem solving skills.
6)Our customers are always at the center of our efforts.




Our contact information



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