KALMINEX Exothermic-Insulating Feeder Sleeves

KALMINEX Exothermic-Insulating Feeder Sleeves

KALMINEX is an exothermic-insulating range of feeder sleeves supplied as preformed cylinders, ovals and neck-downs in a range of diameters up to 850 mm. They are ideally suited for jobbing steel applications.


KALMINEX 2000 are accurately formed, highly exothermic and insulating shapes suitable for feeding all grades of cast steel. They are available as open or blind sleeves in the diameter range of 35 – 120 mm.
Ideally applied as an insert sleeve, the high strength of KALMINEX 2000 means that they can also easily be used for ram-up applications.

"Prior to our relationship with Weaver Materiel, we were purchasing riser sleeves direct from the OEM. As a stocking distributor, Weaver typically is able to deliver same or next day. OEM lead times averaged three to four weeks. With Weaver, I've been able to reduce my working inventory by about 40%."

- JD Schmidt, QA Manager, Ohio Ferrous Foundry

“Ashland Foundry & Machine Works and Weatherly Casting are grateful for the partnership in our working relationship with Weaver Materials.  Weaver has helped us maintain pricing and avoid increases in a volatile market.  Weaver has always kept us in supply of material when markets dictated shortages/allocation status.  If Weaver was not in our vendor pool daily production ability would have been negatively impacted.  Weaver is also technically able to review our foundry processes and make suggestions to either achieve a cost savings or process improvement.  I am looking forward to a continued collaboration between the Weaver team and my locations.”
- Chrissy C