Proof Coil Kiln Chain
The economical option for kilns where severe temperatures are not encountered. Includes the 7/8″ Cement Chain.
Read this first
For heat transfer only — not suitable for lifting. Kiln chain
hangs in a kiln as a heat exchanger and as a scraper. It is not rated for load,
it carries no working load limit, and it must never be used for lifting or
rigging. The catalogue page says so on every family and so do we.
Available in various alloy and high-carbon steels as well as the
popular low-carbon steel. It does not have the heat-transfer properties of
Spira-Loop or ring chain, but it is effective where temperatures are not
severe.
Furnished in ready-to-install or continuous lengths, with or without
end links.
The 7/8″ Cement Chain in the table is a longer, wider link
than the 7/8″ proof coil — 2-1/4″ × 4″ against 1-3/8″ × 2-1/2″ — so it runs
3.00 links per foot instead of 4.80.
Sizes and surface area
| Size |
Link dimensions |
Links / ft |
Weight / ft |
Area / ft |
| 5/8 (21/32) Proof Coil″ |
21/32 x 1 x 1-7/8″ |
6.42 |
4.10 lb |
.636 ft² |
| 3/4 (25/32) Proof Coil″ |
25/32 x 1-1/8 x 2-1/8″ |
5.66 |
5.95 lb |
.770 ft² |
| 7/8 (29/32) Cement Chain″ |
29/32 x 2-1/4 x 4″ |
3.00 |
7.35 lb |
.790 ft² |
| 7/8 (29/32) Proof Coil″ |
29/32 x 1-3/8 x 2-1/2″ |
4.80 |
8.11 lb |
.893 ft² |
| 1 (1-1/32) Proof Coil″ |
1-1/32 x 1-1/2 x 2-3/4″ |
4.40 |
10.77 lb |
1.030 ft² |
Material: Carbon, alloy and high-carbon steel. Surface area is the number that matters —
the chain is a heat exchanger, so area per foot decides how much chain the kiln
needs, and area per pound decides what that area costs you.
Options
| Hardness |
Heat treated to 400+ Brinell, or carburized to 500+ Brinell for greater wear resistance |
| Lengths |
Ready-to-install lengths, or continuous |
| Tolerance |
Weights and dimensions approximate, ±4% |
Weights are calculated at 0.283 lb/in³ for carbon and alloy steel, and
0.29 lb/in³ for stainless.
Fitting it
Chain hangs from a hanger through a
shackle. Both are quoted separately.
The shackle is pinned and locked with a plate: hang the chain on the shackle,
position it over the hanger, push the pin through both, place the locking plate
in its recess and straighten it with a few hammer blows.
Tell us the kiln, the zone and the duty and we will quote it.
