Used Hartford CNC-3190 Double Column Machining Center: Heavy-Duty Performance
| Specification Item | Detailed Data |
| Stock Number | 810971 |
| Brand / Origin | Hartford / Taiwan |
| Model | CNC-3190 |
| Control System | Mitsubishi |
| X / Y / Z Axis Travel | 3000 * 1970 * 920 mm |
| Table Size | 3100 * 1830 mm |
| Spindle Speed | 6000 rpm |
| Distance Between Columns | 2200 mm |
| Workpiece Passage Height | 1200 mm |
| Guideway Type | 3-Axis Box Ways (Hardened & Ground) |
1. Equipment Overview: The Legacy of Hartford Engineering
Hartford, the premium brand of She Hong Industrial Co., Ltd., is synonymous with high-end machining centers worldwide. The Hartford CNC-3190 (Stock No. 810971) stands as a testament to Taiwanese engineering excellence, designed specifically for workshops that demand uncompromising rigidity and large-scale machining capacity. Unlike standard vertical mills, this bridge mill (also known as a double-column machining center) provides a stable platform for processing heavy workpieces. The design philosophy behind the Hartford CNC-3190 series focuses on thermal stability, structural damping, and long-term geometric precision, making it a preferred choice for aerospace, automotive, and heavy energy sectors.
This used unit represents a rare opportunity for manufacturers to acquire a world-class machine at a fraction of the cost of a new installation. Its robust construction ensures that even after years of service, the machine retains the structural integrity required for high-precision finishing operations. For any facility looking to upgrade its large-component manufacturing capability, the Hartford CNC-3190 offers a proven track record of reliability and performance.
2. Detailed Technical Analysis: Power Meets Precision
The Superiority of 3-Axis Box Ways
One of the most defining characteristics of this Hartford CNC-3190 is its 3-axis box way (hardened and ground) construction. In the world of CNC machining, linear guides are often chosen for speed, but for heavy-duty metal removal, nothing surpasses the dampening characteristics of box ways. The wide surface area of the sliding ways provides maximum support for the table and spindle head, effectively neutralizing vibrations during aggressive milling. This results in a superior surface finish and significantly extended tool life, especially when machining tough alloys or large steel castings.
Expansive Working Envelope
With an X-axis travel of 3000mm, a Y-axis travel of 1970mm, and a Z-axis reach of 920mm, the Hartford CNC-3190 provides an expansive working volume. The 2200mm gantry width (distance between columns) allows for the processing of wide structural components that would be impossible to fit on standard machines. The 1200mm clearance from the table to the gantry cross-rail ensures that tall workpieces or complex modular fixtures can be accommodated with ease, providing the versatility needed for a modern job shop environment.
Mitsubishi CNC Control & Spindle Dynamics
Equipped with a Mitsubishi control system, this machine offers high-speed processing and advanced look-ahead functions essential for smooth 3D contouring. The system is known for its durability and global support network. Complementing the control is a 6000rpm heavy-duty spindle. While 6000rpm might seem modest compared to high-speed dental mills, in the context of a large gantry machine, it is optimized for high torque at lower RPMs—perfect for face milling, large-diameter drilling, and heavy boring operations.
3. Industry Applications: A Versatile Workhorse
The Hartford CNC-3190 is a multi-industry solution. In the automotive industry, it is primarily used for the manufacturing of large plastic injection molds for bumpers and dashboards, as well as progressive stamping dies for body panels. Its high load-bearing capacity makes it ideal for the energy sector, specifically for machining components of large industrial valves, turbines, and wind power generator housings. Furthermore, in the general engineering sector, it serves as a reliable platform for the machining of large base plates, machine tool beds, and heavy construction equipment frames. The sheer scale of the 3100*1830mm table allows for "multi-station" setups, where several smaller parts can be processed in a single cycle to maximize throughput.
4. Economic Value: Maximizing ROI in Manufacturing
In today's competitive landscape, capital expenditure (CAPEX) management is crucial. A new Hartford machine of this caliber represents a significant multi-year investment. By opting for this used Hartford CNC-3190, a company can achieve the same manufacturing capabilities while significantly lowering its debt burden. The rapid depreciation of new machinery means that the second-hand buyer captures the most value-productive years of the machine's life cycle. With a lower acquisition cost, the Break-Even Point (BEP) is reached much faster, allowing the business to reinvest profits into R&D or further capacity expansion. This is the strategic choice for smart manufacturing growth.
5. Frequently Asked Questions (FAQ)
Q1: What is the maximum workpiece weight allowed on the table?
A1: Given the table size and the box way construction, this model typically supports workpieces weighing up to 8,000kg to 10,000kg, depending on the load distribution.
Q2: Is the Mitsubishi controller compatible with modern CAD/CAM software?
A2: Yes, the Mitsubishi system supports standard G-code and is fully compatible with major CAM software like Mastercam, WorkNC, and Fusion 360 using standard post-processors.
Q3: Can this machine perform high-speed finishing?
A3: While it is a heavy-duty machine, the 6000rpm spindle and the Mitsubishi look-ahead features allow for very respectable finishing on large mold surfaces, provided the correct tooling is used.
Q4: What are the power requirements for this machine?
A4: Large bridge mills like the Hartford CNC-3190 usually require a 3-phase AC 220V/380V power supply with a capacity of approximately 50-60kVA.
Q5: Do you provide shipping and installation for international buyers?
A5: We have extensive experience in global machinery logistics. We can coordinate the dismantling, container loading (usually requiring Flat Rack or Open Top containers), and provide technical guidance for re-installation at your site.
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