Indonesian Clients Visit VM® Crane Undercarriage Parts Factory
Clients from Indonesia recently visited the VM® crawler crane manufacturing factory. The purpose of this visit was to assess our production capabilities and to place a bulk order for undercarriage components for the Hitachi Sumitomo SCX550 crawler crane.
Undercarriage Parts for the Hitachi Sumitomo SCX550 Crawler Crane
Hitachi Sumitomo SCX550 Track Shoe
Hitachi Sumitomo SCX550 Bottom Roller
Top Roller
Idler
Hitachi Sumitomo SCX550 Sprocket
Production Process for Hitachi Sumitomo SCX550 Undercarriage Parts
We guided our clients through the complete production workflow for the Hitachi Sumitomo crawler crane undercarriage parts:
Our team provided a detailed analysis of the Hitachi Sumitomo crawler crane undercarriage parts manufacturing processes:
I. Blanks Manufacturing
Blanks are manufactured using casting or forging methods to achieve high material density and eliminate any defects in the metal structure.
II. Normalization
The blanks are normalized to improve their grain structure and remove internal stresses.
III. Machining
Machining operations include CNC turning, milling, and gear hobbing to perform shaft bore processing and other operations that increase precision.
IV. Stress-Relief Annealing
After machining, the parts undergo stress-relief annealing to reduce internal stresses from cutting operations and prevent deformation during subsequent heat treatments.
V. Heat Treatment (Core Process)
Quenching: The blanks are heated above 850°C and cooled using oil quenching to harden the surfaces.
Tempering: This operation reduces brittleness and increases material ductility.
Surface Hardening (Induction Hardening): Contacts, such as bottom rollers and track shoes, are subjected to a second hardening treatment to achieve a deep hardened surface layer.
VI. Assembly
Bearings, floating oil seals, and shafts are assembled into the roller bodies.
VII. Painting
After rust removal via sandblasting, an anti-rust primer is applied to enhance corrosion resistance.
VIII. Comprehensive Quality Inspection
Raw Materials: Spectrographic analysis is performed to verify chemical composition.
Post-Heat Treatment: Hardness and impact toughness tests are conducted.
Post-Machining: Dimensions are verified using a Coordinate Measuring Machine (CMM).
Finished Products: Magnetic particle inspection and ultrasonic flaw detection are performed to ensure structural integrity.
IX. Packaging and Shipping
After cleaning and drying, the items are packed in protective wooden crates to prevent impact damage. A Certificate of Conformity and a Test Report are included with the shipment.
Contact
For more details regarding Hitachi Sumitomo SCX550 undercarriage parts, or if you wish to schedule a factory visit, please get in touch with us via the following channels:
Email: info@cranecrawler.com
WhatsApp: +86 15253585908
