Lock ZPK for SVP-17, SVP-22, SVP-27, SVP-33 (with shaped strap forged of 12, 16, and 20 mm wide strips).
Lock ZPK is used to connect components of frame support made of special interchangeable profile.
Use of locks ZPK, ZPK-1, ZPK-2 in arch and trapezoid supports makes it possible to ensure reliability and continuous or increasing resistance of the support in a yielding mode by increasing its bearing capacity and also decrease the support setting density in mine openings, reach material consumption reduction.
• buckle and nuts;
• shaped strap matching SVP profile.
Table 1 – Locks
Title of indicator
Number of clamps per lock
Tong torque when tightening nuts, Nm
Maximum load, kN
Operating resistance of lock, kN
Beam sliding in lock, mm
Meets ST ТОО 180640014918-03-2018 and GOST 31560-2012.