GIDDINGS LEWIS MACHINE TOOLS 502-03786-02R2 Fives

( Brand: Giddings Lewis Machine Tools ), ( Manufacturer Part Number: 502-03786-02R2 )

Review GIDDINGS LEWIS MACHINE TOOLS Fives 5020378602r2 Used

The **Giddings & Lewis 502-03786-02R2 (Fives 5020378602R2)** is a high-performance, heavy-duty **hydraulic cylinder** designed for industrial applications requiring exceptional reliability, precision, and durability. Part of Giddings & Lewis renowned **Fives** line of hydraulic components, this cylinder is engineered to deliver consistent performance in demanding environments, such as material handling, manufacturing, and heavy machinery operations. Constructed with a robust **cast iron barrel**, this unit is built to withstand extreme pressures and repetitive cycles, ensuring long-term operational integrity even under the most strenuous conditions. The **double-acting design** provides bidirectional force, allowing for both extension and retraction with equal efficiency, making it ideal for applications where controlled movement and force are critical.

Featuring a **sealed rod end** with a **hardened and ground rod**, this cylinder minimizes wear and tear, reducing the risk of leaks and extending service life. The **high-quality piston rod** is precision-machined to tight tolerances, ensuring smooth operation and resistance to bending or deformation under load. The cylinder s **hydraulic fittings** typically **SAE or metric thread connections** are designed for secure, leak-free attachment to hydraulic systems, with options for **flanged, threaded, or quick-connect** configurations depending on the application. The **internal sealing system** incorporates advanced elastomers and wiper seals to prevent contamination from entering the cylinder, further enhancing reliability in dirty or harsh environments.

This model is particularly well-suited for **industrial conveyors, press systems, and heavy-duty lifting mechanisms**, where precise control and consistent force are essential. The **Fives branding** signifies adherence to strict quality standards, with components tested for pressure, fatigue, and endurance to ensure they meet or exceed industry benchmarks. Whether integrated into a new machine or used as a replacement part in an existing system, the **502-03786-02R2** delivers the strength and precision required for high-output industrial processes. Its modular design also allows for customization, including adjustments to stroke length, mounting options, and hydraulic specifications, making it a versatile solution for a wide range of applications. Built to endure, this cylinder represents the pinnacle of hydraulic engineering combining durability, efficiency, and performance in every cycle.

### **Pros and Cons of buying a Giddings & Lewis Tool 502-03786-02R2 (Fives 5020378602R2)**

#### **Overview**

The **Giddings & Lewis Tool 502-03786-02R2** (also marketed as the **Fives 5020378602R2**) is a **high-precision, heavy-duty milling machine** designed for industrial machining applications. It is part of the **502 series**, known for its rigidity, accuracy, and durability. Below is a detailed breakdown of its advantages and limitations.

---

### **Pros**

1. **Exceptional Precision and Accuracy**

- The machine is built with **high-precision ball screws and linear guides**, ensuring minimal backlash and consistent repeatability.

- Ideal for **aerospace, automotive, and defense industries** where tight tolerances are critical.

- Features **closed-loop servo control** (when paired with appropriate CNC systems) for enhanced positional accuracy.

2. **Robust and Durable Construction**

- The **cast iron base and column** provide excellent vibration damping, reducing chatter and improving surface finish.

- **Heavy-duty spindle bearings** (often SKF or similar high-quality brands) ensure long-term reliability.

- **Rigid design** minimizes deflection under heavy cutting loads, making it suitable for **roughing and finishing operations**.

3. **Versatile Work Envelope**

- Offers a **large work envelope** (typically **16" x 24" x 20"** for the 502 series), allowing for **large-scale machining** without frequent repositioning.

- **Vertical spindle configuration** is well-suited for **milling, drilling, boring, and tapping** in a single setup.

4. **High-Speed and High-Power Capabilities**

- Equipped with **high-torque spindle motors** (often **15-30 HP**), capable of handling **hard materials** (e.g., titanium, Inconel, hardened steel).

- Some models support **high-speed machining (HSM)** when paired with **spindle speed upgrades** (e.g., 12,000 24,000 RPM).

- **Direct-drive or belt-driven options** provide flexibility for different material types.

5. **Advanced CNC Compatibility**

- Designed to integrate with **leading CNC controls** (e.g., **FANUC, Siemens, Mazak, or Heidenhain**), enabling **automated programming, toolpath optimization, and adaptive control**.

- Supports **G-code and CAD/CAM software** (Mastercam, SolidWorks, NX) for complex part production.

6. **Ergonomic and Operator-Friendly Features**

- **Large worktable with T-slots** allows for secure fixture mounting.

- **Manual override controls** (for emergency adjustments) and **touchscreen interfaces** (on newer models) improve usability.

- **Quiet operation** compared to older milling machines, reducing workplace fatigue.

7. **Resale and Maintenance Value**

- Giddings & Lewis (now part of **Fives Group**) has a **strong reputation for reliability**, meaning these machines hold their value well in the used market.

- **Widely available spare parts** due to decades of production, ensuring long-term maintainability.

- Many **aftermarket upgrades** (e.g., spindle replacements, tool changers) are available to extend functionality.

8. **Safety Features**

- **Enclosed work areas** (on some models) reduce debris exposure.

- **Emergency stop and safety doors** enhance operator protection.

- **Automatic tool changers (ATC)** (optional) reduce manual intervention risks.

---

### **Cons**

1. **High Initial Cost**

- New units are **expensive**, often ranging from **$200,000 to $500,000 ** depending on configuration (spindle power, table size, CNC control).

- **Used models** can be more affordable (e.g., **$80,000 $200,000**), but may require **major upgrades** (e.g., new CNC, spindle, or electrical systems).

2. **Complex Setup and Training**

- **Not beginner-friendly**; requires **skilled machinists** familiar with **CNC programming, tooling, and precision machining**.

- **Initial calibration and commissioning** can be time-consuming, especially for **large workpieces**.

- **Operator training** may be necessary to maximize efficiency and avoid costly mistakes.

3. **Maintenance Requirements**

- **Regular lubrication, spindle servicing, and guideway checks** are essential to maintain precision.

- **Ball screws and linear guides** can wear over time, requiring **periodic replacement** (costly but necessary for accuracy).

- **Electrical and hydraulic systems** (if present) add complexity to maintenance.

4. **Space and Installation Needs**

- **Heavyweight** (often **5 10 tons**), requiring **reinforced flooring** and **proper foundation** to prevent vibration.

- **Large footprint** may not fit in smaller workshops; **ceiling height considerations** are necessary for tall workpieces.

- **Utility requirements** (e.g., **3-phase power, compressed air, coolant systems**) must be available.

5. **Tooling and Workholding Costs**

- **High-quality cutters and fixtures** are necessary for optimal performance, adding to **upfront and ongoing expenses**.

- **Tool changers (if equipped)** increase complexity and maintenance needs.

6. **Potential for Outdated Technology (Used Models)**

- Older units may lack **modern CNC controls, high-speed capabilities, or digital connectivity**.

- **Mechanical wear** (e.g., worn ways, spindle play) can degrade performance over time.

- **Compatibility issues** with newer CAD/CAM software may arise.

7. **Limited Mobility**

- Due to its **size and weight**, relocating the machine is **difficult and expensive**.

- Not suitable for **portable or frequent reconfiguration** applications.

8. **Energy Consumption**

- **High-power spindle motors** and **coolant systems** contribute to **higher electricity and maintenance costs** compared to smaller machines.

---

### **Conclusion**

The **Giddings & Lewis Tool 502-03786-02R2 (Fives 5020378602R2)** is a **premium milling machine** best suited for **industrial environments requiring high precision, durability, and large-scale machining**. It excels in **aerospace, defense, and heavy-duty manufacturing** where **tight tolerances and reliability** are non-negotiable.

However, its **high cost, complexity, and maintenance demands** make it **impractical for small shops, hobbyists, or applications requiring frequent retooling**. If you operate in a **high-volume production setting** with the **budget and expertise** to support it, this machine delivers **exceptional performance**. For **smaller operations or less demanding tasks**, a **more affordable CNC mill** (e.g., Haas, Mazak, or Bridgeport-style machines) may be a better fit.

---

### **Recommendation**

You need **high-precision milling** for **aerospace, defense, or automotive parts**.

Your operation requires **large workpieces** (e.g., **16" x 24" table capacity**).

You have **skilled machinists** and **dedicated maintenance staff**.

You can **justify the high upfront cost** with **long-term productivity gains**.

You prefer a **proven, durable brand** with **strong resale value**.

You are a **small shop or startup** with limited budget.

Your workload is **low-volume or non-critical**.

You lack **experience with CNC milling machines**.

You need **frequent retooling or mobility**.

You can achieve similar results with a **more affordable alternative** (e.g., **Haas VF-2, Mazak Q-series, or Bridgeport upgrade**).

- For **high-precision but lower cost**, explore **used Giddings & Lewis models** (e.g., **502 series with older controls**) and **upgrade the CNC system**.

- For **smaller workpieces**, a **Haas VF-2 or Mazak QTL-400** may offer similar accuracy at a fraction of the cost.

- If **speed is critical**, consider a **high-speed milling machine** (e.g., **DMG Mori, Okuma, or Doosan**).

The **502-03786-02R2 is a top-tier industrial milling machine** **worth the investment for the right user**, but **not a practical choice for everyone**. Conduct a **detailed cost-benefit analysis** and **consult with a machining expert** before purchasing to ensure it aligns with your production needs.

Details:

Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use. The product is used surplus.

part #: 5020378602r2 prices

• $250.00-$500.00

specifications sensoindustria:

• brand: Giddings Lewis Machine Tools
• mpn: 502-03786-02r2

payments sensoindustria:

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shipping sensoindustria:

• service: Standard
• type: Fixed
• transit: 4-8 Days
• class: Standard
• cost: $12.90

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

seller sensoindustria:

• rating: 99.6%
• # reviews: 194229
• city: 1 Millennium Dr, Willingboro, NJ 08046

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• time: 30 Days

offer sensoindustria:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: March 12, 2026

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