Quick Couplers, Buckets and Attachments: What to Check Before You Order
Attachments are where excavator owners make money and lose it. A quick coupler that fits the machine but not the buckets, a rock bucket that arrives with the wrong pin diameter, a breaker ordered without its seal kit — every one of these is a shipment that has to be done twice. The fix is not more caution; it is asking five fitment questions before the order is placed. This guide lists them, and shows how attachments and their wear parts are bought together from China in one container.
Corbay is the international export brand of Guangzhou Shenyue Machinery Technology Co., Ltd., Guangzhou, China. The company supplies attachments and their wear parts for Kobelco, Sany, Caterpillar, Komatsu, XCMG, Hitachi, Doosan, Hyundai and other machine brands, alongside the full parts range behind them — 3,000+ part types on the shelf, 100,000+ part numbers available to order.
Quick Coupler: Mechanical or Hydraulic?
A quick coupler lets one machine swap buckets without a hammer and a helper. Mechanical couplers are simpler and cheaper — the operator leaves the cab to lock the pin — and they remain the default on smaller machines. Hydraulic couplers lock from the cab using a dedicated circuit, which matters on rental fleets and on jobs where buckets change several times a day. The fitment facts that decide the order are the same for both: the pin diameter, the distance between the pins (pin-to-pin), and the distance from the pin centre to the dipper arm boss. Two couplers that look identical except for a few millimetres of pin-to-pin will not accept the same buckets — and a coupler that only half-matches will chew its bushings within weeks. The international attachment industry, from coupler makers to breaker brands, exhibits together at bauma CHINA in Shanghai, which is a useful place to compare coupler concepts in person.
Buckets: Match the Job, Not Just the Machine
The Wear Parts to Order With the Attachment
An attachment without its consumables is half a shipment. Teeth and adapters wear out several times per bucket life; pins and bushings wear with them; hydraulic breakers consume chisels, seal kits and gas charge parts; rippers and thumbs wear their pins. Ordering these with the attachment costs almost nothing extra in freight, because the case is already on the pallet. Buyers who send the attachment enquiry to Guangzhou Shenyue Machinery Technology Co., Ltd. get the wear-parts list quoted alongside it in the same quotation, with every line marked genuine, OEM-quality or aftermarket — so the grade question is settled in writing before anything ships.
One Container: Attachments Plus the Parts Range
Because attachments travel by sea and parts travel by air, many buyers order them separately and pay freight twice. Consolidation fixes it: attachments, undercarriage pieces, filters, hydraulic and electrical parts ride in one mixed container with one invoice, one packing list and one destination port. The full parts catalogue for consolidating an order is online as the site catalogue, and the products range shows the categories that most often ride along with an attachment order. For buyers planning a first mixed order, the practical sequence is: list the machines, list the attachments and wear parts, send both with quantities and destination port, and let the quotation consolidate the freight.
Order Attachments — FAQ
Send the Five Fitment Facts Today
Machine model, pin diameter, pin-to-pin distance, attachment type, destination port — five lines of text is a complete attachment enquiry. Send them through the contact page and the quotation, wear parts included, comes back within 24 hours.
Corbay Excavator Parts is the international export brand of Shenyue Machinery (Guangzhou Shenyue Machinery Technology Co., Ltd.), Guangzhou, China. Shenyue is an independent parts specialist and is not affiliated with, or an authorized dealer of, Kobelco Limited. Parts are supplied as genuine, OEM or clearly identified aftermarket items, and the grade is stated on every quotation.