ASTM A193/A193M B7 All Threaded Stud Bolts
API 6A 6D Flange Valve Wellhead ASME/ANSI Flange All Thread Stud Bolts
Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
Standard: IFI-136, ASME B16.5, DIN976
Inch Size: 1/4”-4” with various lengths
Metric Size: M6-M100 with various lengths
Other Available Grade:
ASTM A193/A193M B7, B7M, B16, B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.
Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
I’ve never seen suspension insulators up close before so was a bit confused as to why there’s so much metal in-between the glass (porcelain, ceramic?) discs? Obviously for strength since the high tension wires are heavy and create a lot of stress. Nevertheless, how do these things insulate so well – especially in wet weather?? I’ll research the matter further and try to post an answer here.
This particular video recording in near the Valmont power generating facility in Boulder, Colorado. I believe the lines, in question, supply 230,000 volts but I’ll have to double-check that as well. The insulators were lying on the ground immediately adjacent the Boulder Creek bike path.
Here’s my personal web page about science, in general:
https://www.rogerwendell.com/science.html
05-12-2009
The Desktop CNC Market is flooded at the moment with cheap frames from China, that are okay for light engraving or very light milling, but they do not actually do the speeds or range of materials they claim to.
After the feedback over the last year we have concluded that there is a gap in the Desktop market for a more Robust/Rigid machine that will cut a full range of materials, just like a commercial machine, but at an affordable price for the hobby people or small business sector.
Here is a quick run down of the specs.
Ball Screws on each Axis (Not cheap trapezoidal threads)
12mm Quad Rails on Z-Axis
12mm Quad Supported Rails on X-Axis
12mm Dual Supported Rails on Y-Axis
Frame built of 60×40 anodised aluminium profile.
Mixture of tough 6mm-10mm aluminium plates, custom made.
Total dimension of the aluminium frame(approx):
width: 461 mm x depth: 461mm mm x height: 320 mm
Cutting area (Approx)
X-Axis 310mm
Y-Axis 310mm
Z-Axis 90mm
Clamping area: 370mm x 160mm, width of the t-slots: 3 x 5mm and 4 x 8mm
Built in Kress spindle holder, or can be changed out for smaller holder.
3.1nm Motors on each Axis
4.3 amps motor drivers mounted in custom box to match machine.
Motors fully wired and protected in flexi conduit.
As you can see below the Quad rail setup on the X and Y Axis means zero wobble or movement when the machine is running and espeically when it is cutting.
With the traditional way of mounting a spindle you always get the expected overhang and this can cause unwanted noise, as well as vibration, not to mention undesirable chatter when cutting certain material. The Quad rail setup does away with this by holding your spindle center of the machine and keeping as rigid as we can get it.
https://www.cncdudez.co.uk