FACTORY-DIRECT EXCAVATOR ATTACHMENTS · RESPONSE WITHIN 24H
Buyer Resources · Technical Reference

Sizing & Compatibility Guides

Direct engineering answers, millimeter pin charts, and import logistics guides for equipment dealers, rental fleets, and contractors.

4 TECHNICAL GUIDES
VERIFIED PIN & TONNAGE TABLES
FREE FITMENT SUPPORT
GUIDE · FITMENT
How to Measure Excavator Bucket Pin Size, Ear Width & Pin Centers
Step-by-step caliper measurement guide for pin diameter (A), dipper ear width (B), and pin center-to-center distance (C).
Read Full Guide →
GUIDE · SELECTION
Excavator Bucket Sizes & Capacity Chart by Tonnage (1–50 Ton)
Complete width, struck/heaped m³ capacity, and tooth system chart for 1–50 T excavators.
Read Full Guide →
GUIDE · COMPATIBILITY
Bobcat E35 Bucket, Thumb & Coupler Compatibility Guide
Pin dimensions, X-Change vs Pin-On brackets, and auxiliary hydraulic flow specs for Bobcat E35.
Read Full Guide →
GUIDE · COMPARISON
Hydraulic Thumb vs. Mechanical Thumb: Which Should You Choose?
Cost, plumbing requirements, and jobsite efficiency comparison for 1–10 T excavators.
Read Full Guide →
Need a Custom Pin Chart?

Send Your Nameplate for a Free Fitment Check

Unsure whether your machine uses standard pin-on ears, Bobcat X-Change, or John Deere wedgelock? Upload a photo of your serial plate or existing bucket ears and our engineers will confirm exact millimeter specs within 24 hours.

Upload Nameplate Photo →View Mini Pin Matrix
01 / FITMENT GUARANTEE
100% Pin-Verified Drawings
Signed 2D hanger drawing before steel cutting; free replacement if out of spec.
02 / CERTIFIED METALLURGY
NM400 & 42CrMo Mill Certs
MTC 3.1 steel certificate & portable Brinell hardness report with every order.
03 / ZERO-BLIND-BALANCE QC
Caliper Photo Inspection
Verify pin bore, stick width & center-to-center photos before 70% balance.
04 / GLOBAL EXPORT LOGISTICS
FOB China & DDP Door-to-Door
Direct 20GP/40HQ container or crated LCL delivery to US, CA, EU, UK & AU.