Excavators
Mini, midi and large excavators for digging, trenching, earthmoving and truck loading across construction and site preparation projects.
COMPANY & FACTORY
SINN Company & Factory
Established in 2005, SINN manufactures construction equipment and supplies compatible attachments and replacement parts to equipment buyers and contractors worldwide.
COMPANY OVERVIEW
Who We Are
Our supply model combines SINN-built machines with compatible attachments and replacement parts from strategic partner factories. Buyers can purchase products individually or as coordinated equipment packages for specific construction applications.
From pre-sales product selection through order fulfillment and after-sales support, SINN takes responsibility for the quality of the products it supplies and provides equipment application support.
Requests for OEM/ODM services, private labeling, product modifications and compliance documentation are subject to separate technical and commercial evaluation.
For projects that also require hauling capacity, SINN can coordinate the sourcing of HOWO dump trucks alongside other project equipment through its alliance network.
PRODUCT SCOPE
Construction Equipment, Attachments & Parts
Explore SINN’s construction equipment, compatible attachments and replacement parts. Select a category to view the available product range.
Wheel Loaders
Compact, mid-size and large wheel loaders for loading, stockpiling and material handling.
Backhoe Loaders
Versatile machines combining a front loader and rear backhoe for material loading, trenching and general excavation.
Skid Steer Loaders
Compact, maneuverable loaders for loading, grading and material handling, with compatible attachments for additional jobsite tasks.
Bulldozers
Powerful earthmoving machines for pushing soil and bulk materials, grading and site preparation.
Road Rollers & Compactors
Road rollers and compactors for soil, gravel and asphalt compaction in road construction, earthworks and site preparation.
Construction Machinery Attachments
Attachments for excavators, wheel loaders and skid steer loaders, matched to the machine and task for digging, demolition and material handling.
Construction Machinery Parts
Replacement parts for construction equipment, supporting routine maintenance and repairs, with compatibility confirmed for each machine.
FACTORY CAPABILITIES
Manufacturing & Quality Control
SINN’s in-house production includes structural fabrication and welding, component machining, machine assembly, and hydraulic system setup and functional testing. In-process inspections and final checks are carried out to model-specific requirements.
Structural Fabrication & Welding
Steel structural components for construction equipment are fabricated, with welding fixtures used to maintain alignment during welding. Weld quality and key dimensions are checked against engineering drawings and inspection criteria.
Machining & Dimensional Inspection
Pivot bores and mounting faces are machined to engineering drawings. Bore diameters, hole positions and bore alignment, where specified, are inspected before assembly.
Machine Assembly & Hydraulic Commissioning
Assembly checks cover critical fastener torque, hydraulic connections and hydraulic hose routing. Hydraulic commissioning includes pressure-setting verification, functional checks and checks for external hydraulic leaks, in accordance with model-specific specifications.
Functional Testing & Final Inspection
Machine functions are checked against model-specific procedures before shipment. Inspection results, any necessary rectification and reinspection are documented and linked to the machine serial number.
COMPATIBILITY REVIEW
Attachment & Parts Compatibility
Share the relevant machine and product details to help SINN review attachment fitment or identify suitable replacement parts.
- Machine Identification Machine make, model and serial number or PIN, where available.
- Attachment Requirements Mounting or coupler details, intended application and hydraulic specifications, where applicable.
- Parts Identification Part number, component identification and supporting photos or drawings, where available.
Final compatibility must be confirmed with SINN before order confirmation, using the applicable manufacturer specifications and the machine’s actual configuration.
COMPANY INQUIRY
Discuss Your Requirements with SINN
Share the equipment or product type, quantity, destination and target timeline. For attachments or replacement parts, include the available machine and product references.