Pros:
- Precision: Extremely accurate measurements.
- Versatility: Includes a taper attachment for a variety of turning operations.
- Powerful: High horsepower motor suitable for heavy-duty tasks.
- Durability: Robust construction ensures longevity and sustained performance.
- Ease of Use: User-friendly controls and an ergonomic layout.
Cons:
- Cost: Higher price point, which may be prohibitive for hobbyists or small shops.
- Size: Larger footprint requires more space, which might not be ideal for smaller workshops.
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Personal Experience with Jet 321862 GH-2680ZH Lathe with Newall DP700 DRO and Taper Attachment
Having worked with several lathes throughout my career, my experience with the Jet 321862 GH-2680ZH stands out for several reasons. From the first day, this machine made an impression with its robust design and user-friendly interface, both of which have significantly streamlined the workflow in our shop.
Daily Operations and Ease of Use
On a typical day, I rely heavily on the digital readout (DRO) system, the Newall DP700, which is a game-changer for achieving precise measurements without recurring to manual gauging. This accuracy is crucial for the bespoke parts we manufacture, which often have tight tolerance requirements. The clarity and reliability of the DRO ensure that we consistently meet the specifications demanded by our projects.
The rapid traverse feature is another aspect that I find immensely beneficial. It allows us to move the carriage and cross slide quickly along the bed, which is particularly useful when working on larger pieces or when needing to adjust the machining start point. This not only saves time but also reduces the physical strain associated with manual adjustments.
Performance Under Load
The GH-2680ZH is equipped with a 10 HP motor, which provides ample power for all our operations. Whether we’re turning large steel shafts or delicate bronze sculptures, the machine operates smoothly without any signs of strain or overheating, thanks to its effective coolant system. This consistency is something I’ve come to rely on, especially during long production runs.
Practicality and Support
The assortment of chucks and the inclusion of both a steady and follow rest have broadened the range of projects we can handle. This adaptability is crucial for a custom shop like ours, allowing us to take on diverse projects without needing additional equipment.
In terms of support, Jet’s customer service has been prompt and helpful on the few occasions we’ve needed assistance. Whether it was a question about maintenance or a request for spare parts, their responses were always timely and effective, minimizing downtime.
Tailstock and Quill Operation
One feature that I find particularly valuable, and that I often take for granted, is the robust design of the tailstock and quill. It’s designed to be sturdy yet easy to adjust, which is critical when working with long or awkwardly shaped workpieces. The smooth operation of the tailstock enhances our ability to maintain precision over the entire length of the piece, which is often a challenge with less reliable equipment.
Threading Capabilities
Threading is another area where this lathe excels. With the capability to easily switch between 48 inch and 22 metric thread pitches, the machine allows us to cater to a variety of customer specifications without significant downtime for setup changes. This versatility is a huge advantage in a commercial setting where client requirements can vary dramatically from one project to the next.
Durability and Reliability
From a durability standpoint, this lathe has withstood continuous use without any significant issues, which speaks to its solid construction and quality engineering. It operates just as smoothly today as it did on day one, despite the high-demand tasks we regularly put it through. This reliability means I spend less time worrying about machine downtime and more time focusing on production and quality control.
Purchasing Experience from Beaver Industrial Supply
Purchasing Jet 321862 GH-2680ZH Lathe from Beaver Industrial Supply was a seamless experience. Their customer service was exceptional, providing expert advice and ensuring that the lathe was delivered promptly and in pristine condition. Their support did not end at the sale; they were helpful throughout the setup process, making sure the lathe was operational and meeting our expectations.
JET 321862 GH-2680ZH Lathe with Newall DP700 DRO and Taper Attachment Overview
In the world of machine tools, precision and reliability are paramount. The JET 321862 GH-2680ZH Lathe with Newall DP700 DRO and Taper Attachment exemplifies these qualities, offering robust features and innovative design to accommodate the demanding needs of modern production environments. This review will delve into the key aspects of this lathe, highlighting its performance, features, and overall value.
Introduction
The JET GH-2680ZH lathe falls under the ZH-Series, known for their 4-1/8” spindle bore and a clutch-operated headstock, which enhances both efficiency and output in high-production settings. With a universal gearbox and rapid traverse on the apron, this lathe is engineered for both speed and precision. The machine also comes with JET’s industry-leading two-year warranty, reinforcing the manufacturer’s confidence in its durability and performance.
Key Features and Specifications
Design and Construction
The GH-2680ZH is designed with a heavy-duty tailstock and quill, and the bed ways are induction hardened and ground for exceptional durability. This meticulous attention to construction detail ensures the lathe can handle rigorous use over time. The full-length splash guard is another notable feature, offering enhanced safety and cleanliness during operation.
Headstock and Spindle
The lathe’s headstock is operated via a clutch, with all gears hardened and ground for longevity. The spindle bore of 4-1/8 inches accommodates larger workpieces, a significant advantage for various applications. The headstock gearbox allows easy selection between inch and metric threading, which is vital for workshops that deal with diverse project requirements.
Speed and Precision
Offering 12 spindle speeds ranging from 36 to 1,600 RPM, the GH-2680ZH provides versatility for different machining tasks. The inclusion of a Newall DP700 digital readout (DRO) enhances precision, allowing operators to make precise adjustments and measurements effortlessly. This DRO is particularly useful for complex projects where accuracy is critical.
Taper Attachment and Additional Equipment
The taper attachment is a significant addition, facilitating the accurate machining of tapers without manual effort. Standard equipment also includes a 4-way toolpost, a 12″ 3-jaw direct mount scroll chuck with jaws, a 16″ 4-jaw chuck, a face plate, steady rest, follow rest, and a coolant system. These accessories enhance the lathe’s versatility, making it suitable for a wide range of turning and machining tasks.
Capacity and Motor
The swing over bed is 26 inches, and the distance between centers is 80 inches, providing ample space for larger workpieces. The motor is a robust 10 HP unit, prewired for 230 volts but capable of handling up to 460 volts, providing powerful and reliable performance under heavy loads.
Performance Review
The GH-2680ZH excels in operational efficiency and precision. The rapid power traverse to the cross slide and carriage ensures quick positioning, which is crucial in a high-output production environment. The machine’s ability to quickly switch between feed rates and threading options without compromising on precision or operational smoothness is a standout feature.
Applications and Suitability
This lathe is well-suited for various applications, from tool rooms to production shops, especially those dealing with medium to large-sized workpieces. Its robust construction and advanced features make it ideal for industries requiring high precision and productivity, such as aerospace, automotive, and manufacturing.
Enhanced Operational Capabilities
One of the critical aspects of the GH-2680ZH is its ability to handle both heavy and delicate operations with precision. The clutch-operated headstock, combined with a high-performance gearbox, allows for smooth transitions between different speeds and feeds, crucial for maintaining the integrity of the workpiece under various loads.
The lathe’s rapid traverse feature on the apron is particularly beneficial for speeding up production without sacrificing accuracy. This feature, along with the machine’s robust construction, helps reduce downtime and increase throughput, a key factor in production efficiency.
Pros and Cons of JET 321862 GH-2680ZH Lathe with Newall DP700 DRO and Taper Attachment
Pros:
- 4-1/8″ Spindle Bore: Allows for handling larger workpieces, suitable for various industrial applications.
- Clutch Operated Headstock: Enhances efficiency and precision, with all gears hardened and ground for durability.
- Universal Gearbox: Supports easy selection between inch and metric threading, facilitating versatile operations.
- Rapid Traverse on Apron: Speeds up operation without sacrificing accuracy, ideal for high-output production.
- Newall DP700 Digital Readout: Offers high precision in measurements, crucial for detailed and complex projects.
- Taper Attachment: Simplifies the process of machining tapered profiles, enhancing the machine’s versatility.
- Comprehensive Accessory Kit: Includes a 4-way toolpost, multiple chucks, and rests, readying the machine for a variety of tasks.
- Heavy-Duty Construction: Features like a heavy-duty tailstock and ground bed ways ensure long-term durability and stability.
- Halogen Work Lamp and Full Length Splash Guard: Improve safety and visibility during operations.
Cons:
- Learning Curve: The range of features and digital systems may require a significant time investment for new users to master.
- Size and Weight: Weighing over 8,500 lbs and measuring 138 x 43 x 57 inches, it requires considerable workshop space and setup effort.
- Electricity Requirements: With a powerful 10 HP motor prewired for 230 volts and capable of 460 volts, it may necessitate electrical upgrades in some workshops.
- Initial Investment: The sophisticated features and robust construction come at a higher price point, which might be a significant investment for smaller operations.
Industry Relevance and Versatility
The inclusion of both a 12″ 3-jaw and a 16″ 4-jaw chuck enhances the lathe’s versatility, allowing it to accommodate a wide variety of workpiece sizes and shapes. This adaptability makes the GH-2680ZH suitable for multiple industries, including but not limited to, automotive, metal fabrication, and even artisanal metalworking.
The lathe’s capability to execute both inch and metric threading with ease is a significant advantage for shops that work on international projects or need to comply with varied industry standards. The range of longitudinal and cross feeds adds another layer of adaptability, making the GH-2680ZH an excellent choice for custom or specialty manufacturing tasks.
JET 321862 GH-2680ZH Lathe with Newall DP700 DRO and Taper Attachment Specifications
| Specification | Detail |
|---|---|
| Size | 26 x 80 |
| Digital Readout | Newall DP700 |
| Accessory 1 | Taper Attachment |
| Swing Over Bed (In.) | 26 |
| Swing Over Cross Slide (In.) | 16-1/2 |
| Swing Through Gap (In.) | 34 |
| Length of Gap (In.) | 8 |
| Distance Between Centers (In.) | 80 |
| Spindle Bore (In.) | 4-1/8 |
| Spindle Mount | D1-8 |
| Spindle Taper with Sleeve | MT-5 |
| Number of Spindle Speeds | 12 |
| Range of Spindle Speeds (RPM) | 36 – 1,600 |
| Number of Longitudinal and Cross Feed Rates | 65 |
| Range of Longitudinal Feeds (IPR) | .0023 – .0937 |
| Range of Cross Feeds (IPR) | .010 – .0404 |
| Number of Inch Threads | 48 |
| Range of Inch Threads (TPI) | 2-30 |
| Number of Metric Threads | 22 |
| Range of Metric Threads | 1 – 14 |
| Max Tool Size (In.) | 1-1/4 x 1-1/4 |
| Compound Slide Travel (In.) | 5-1/2 |
| Cross Slide Travel (In.) | 12-3/32 |
| Carriage Travel (In.) | 72-1/2 |
| Tailstock Spindle Travel (In.) | 6 |
| Taper in Tailstock Spindle | MT-5 |
| Follow Rest Capacity (In.) | 25/32 – 3-15/16 |
| Steady Rest Capacity (In.) | Small 25/32 – 4-29/32, Large 3-15/16 – 9-7/16 |
| Width of Bed (In.) | 16 |
| Motor (HP) | 10 HP, 230/460, 3 Ph |
| Prewired (V.) | 230 |
| Weight (Lbs.) | 8,514 |
| Overall Dimensions (L x W x H) (In.) | 138 x 43 x 57 |
| Style (Type) | Engine – Large Spindle Bore |
| Drive | Geared Head |
Long-Term Value and Support
JET’s two-year warranty underscores the company’s commitment to quality and customer satisfaction. The ability to access service centers across the United States ensures that maintenance and repair are neither tedious nor time-consuming, which can be crucial for businesses aiming to minimize operational disruptions.
Conclusion
The Jet 321862 GH-2680ZH Lathe with Newall DP700 DRO and Taper Attachment is a highly recommended investment for any professional shop. Its combination of power, precision, and versatility makes it suitable for a wide range of industrial applications.
From its robust design to the reliable customer service of Beaver Industrial Supply, this lathe ensures both high-performance output and satisfaction. For shops looking to enhance their machining capabilities, the GH-2680ZH is a prudent choice that promises long-term reliability and precision.