Hi Everyone, Looking for the key details from SAE J296 or ISO 12508 standards on struck and heaped bucket capacity. I only need the essential info for underground loader planning, not the full document. Any help is appreciated
What do you need.? Just some details regarding how exactly the struck and heaped capacities are measured.?
Exactly, can u share with me please. Thank you
EXCAVATOR BUCKET CAPACITIES - PCSA standard No. 3 and SAE standard J-296. Buckets are rated on both their struck and heaped capacities as follows: Struck Capacity - Volume actually enclosed inside the outline of the sideplates and rear and front bucket enclosures without any consideration for any material supported or carried by the spillplate or bucket teeth. Heaped Capacity - Volume in the bucket under the strike off plane plus the volume of the heaped material above the strike off plane, having an angle of repose of 1:1 without any consideration for any material supported or carried by the spillplate or bucket teeth. The Committee on European Construction Equipment (CECE) rates heaped bucket pay loads on a 2:1 angle of repose for material above the strike off plane.
SAE Bucket Capacities for Wheel & Track Loaders. Note that the SAE Standard for these buckets is J-742, not J-296 which is only for excavator buckets. Struck Capacity - That volume contained in a bucket after a load is leveled by drawing a straight edge resting on the cutting edge and the back of the bucket. Heaped Capacity - Struck capacity plus that additional material that would heap on the struck load at a 2:1 angle of repose with the struck line parallel to the ground. SAE J-742 (FEB85) specifies that the addition of any auxiliary spill guard to protect against spillage which might injure the operator will not be included in bucket capacity ratings. Buckets with irregular shaped cutting edges (vee edge) the strike plane should be drawn at one-third the distance of the protruding portion of the cutting edge.
thank you for the explanation