Polymer resin composite manhole cover | BMC composite manhole cover | bmc polymer manhole cover

The composite cover plate is pressed by a hydraulic press of glass fiber and resin & Steel bar,Because it has no use value, so play a role in guarding against theft.Suitable for use under severe environmental conditions of -50 to 150℃.Composite resin cover plasticity strong, colouring rich.Its loading class can reach A15,B125,C250.if D400 loading capacity, we suggest use SMC manhole cover or Ductile Iron manhole cover.

B125 Round BMC composite manhole cover

BMC manhole covers are the the abbreviation of bulk molding compounds manhole covers.People in China often called unsaturated polyester dough molding compound. The main raw material of GF (chopped glass fibers), UP (unsaturated polyester resin),MD (filler) and various additives made by mixing dough prepreg material.

The Materials of BMC composite manhole cover:

Material of BMC manhole cover

The production process is simple
BMC molded covers are resin,fiberglass,filler material to form BMC.Firsty in the bottom of the mold,put a small amount of BMC material,into steel bars, and then put the rest of BMC material, suppress heat-cured . Process characteristics: All the material is uniformly reinforced material except of steel bar material,simple production operations,a compression molding.

BMC is a new type of composite material covers high-strength covers, use of advanced technology with advanced equipment film forming, this covers the performance indicators have reached and exceeded the international requirements of similar products, to replace the other covers were excellent replacement product.

composite manhole cover

   This covers light weight, easy to transport with a dark turn, can be very effective in reducing labor intensity. Has a very good anti-theft effect, because the synthetic resin material is not the value of recycling, can effectively prevent the occurrence of urban black hole, can be very effective protection of people’s safety, composite covers high accuracy and very corrosion resistant, high temperature molded advantages of one kind production, has a very good anti-acid properties, which makes the covers durable.

Good quality appearance
With exquisite appearance,BMC manhole covers can be made into a variety of colors.

The cost is relatively low
BMC manhole covers comparingly save material because its structrue uses flat bottom plus ribbed bars.There are many companies in China that use recycled old steel reinforcement with less production staff,low management costs. Therefore,the production cost of BMC molded covers is relatively low. The price of BMC manhole covers are of very very cheap price comparing to other SMC and FRP/GRP manhole covers.

when you want to Purchase the BMC manhole cover, It’s best to tell us the follow sizes and loading capacity which you need.

D is cover size, d is clear opening size, and d1 is Outer frame size,h is cover thickness, and H is total height .

We specializes in composite manhole covers products for sale and exportation.Now we have developed Round and square Composite Manhole Covers(BMC/SMC/Iron material), composite rain Gratings, and composite tree grating,Pig slat flooring,drainage ditch,etc.Our Composite Manhole Covers can be used in various applications such as inspection chambers for sewerage, underground Electrical Cabling, Road, Water, Gas and Petroleum Installations, Beautification of Gardens and Landscapes. 

 Composite manhole covers are used for  Green Belt on both sides of the road .Using this kind of manhole cover in these places is the best option because it is cheap and does not require a high bearing capacity.

If you are interested in our composite manhole cover, please let us know the Size and bearing capacity you need, and we will reply to you in time. Our mailbox is: Tony@cxhdcover.com