
( Brand: Festo ), ( Manufacturer Part Number: DHTG-140-3-A ), ( Part Type: Pneumatic Table )
The **Festo DHTG-140-3-A Double-Acting Pneumatic Rotary Indexing Table (Part No. 555450, Series S1)** is a high-performance, precision-engineered component designed to deliver reliable and repeatable rotational motion for automated assembly, material handling, and indexing applications. Part of Festo s renowned **S1 series**, this compact yet robust rotary table combines advanced pneumatic actuation with a smooth, torque-driven mechanism to achieve precise angular positioning with minimal backlash. With a **140mm (5.51 inches) mounting diameter**, it is well-suited for integration into modular automation systems, conveyor lines, or custom workstations where space efficiency and accuracy are critical. The **double-acting design** ensures bidirectional rotation, allowing for both clockwise and counterclockwise indexing with consistent force and speed, making it ideal for applications requiring dynamic repositioning, such as part orientation, palletizing, or multi-stage processing. Constructed from durable materials including high-grade aluminum and corrosion-resistant coatings, the table is built to withstand demanding industrial environments while maintaining operational integrity over extended periods. Its **pneumatic drive system** leverages Festo s optimized cylinder technology, delivering smooth, jitter-free motion with minimal energy consumption, further enhancing its suitability for energy-efficient automation setups. The table s **modular design** allows for easy integration with Festo s extensive range of pneumatic components, including valves, sensors, and control systems, enabling seamless communication and automation via **Festo s CPX or CECIO control platforms**. Whether used in light-duty indexing tasks or more demanding applications requiring precise angular control, the DHTG-140-3-A excels in delivering **consistent, repeatable performance** with minimal maintenance, making it a versatile and cost-effective solution for modern manufacturing and automation challenges.
### **Pros and Cons of buying a FESTO DHTG-140-3-A Double-Acting Pneumatic Rotary Indexing Table (555450 S1)**
#### **Pros**
1. **Precision and Accuracy**
The FESTO DHTG-140-3-A is designed for high-precision indexing applications, offering repeatable positioning with minimal backlash. This makes it suitable for automated assembly, inspection, or machining tasks where accuracy is critical.
2. **Double-Acting Pneumatic Operation**
Unlike single-acting cylinders, this table uses compressed air in both directions, allowing for faster and more controlled indexing movements. This reduces cycle times and improves efficiency in automated processes.
3. **Compact and Space-Efficient Design**
With a 140mm diameter, this table is relatively compact for its capacity, making it ideal for integration into smaller production lines or limited workspace environments.
4. **High Load Capacity**
The table supports a significant load (typically up to 50 kg or more, depending on mounting configuration), allowing it to handle heavier workpieces without compromising stability.
5. **Modular and Customizable**
FESTO components are known for their modularity, meaning this table can be easily integrated with other FESTO pneumatic or electronic systems (e.g., valves, sensors, or control units) for tailored automation solutions.
6. **Durability and Reliability**
FESTO is a well-established brand with a reputation for robust, long-lasting pneumatic components. The DHTG series is built for industrial use, ensuring durability in demanding environments.
7. **Quick and Easy Indexing**
The pneumatic drive allows for rapid positioning, which can significantly speed up production cycles compared to manual or hydraulic alternatives.
8. **Low Maintenance Requirements**
Pneumatic systems generally require less maintenance than hydraulic counterparts, as they do not rely on fluids that can degrade over time. Seals and components are designed for longevity.
9. **Compatibility with Existing Automation Systems**
If your facility already uses FESTO or other pneumatic systems, this table will integrate seamlessly with minimal additional infrastructure.
10. **Safety Features**
FESTO equipment often includes safety features such as emergency stop compatibility, pressure relief, and fail-safe mechanisms, reducing operational risks.
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#### **Cons**
1. **Dependence on Compressed Air Supply**
The table requires a reliable and clean compressed air source. Poor air quality (moisture, contaminants) can lead to premature wear of seals and internal components, increasing maintenance needs.
2. **Limited Torque at Low Speeds**
While pneumatic systems are fast, they may struggle with precise low-speed or high-torque applications. If fine adjustments or slow, controlled movements are required, additional mechanical or electronic assistance (e.g., a brake or servo assist) may be needed.
3. **Noise and Vibration**
Pneumatic actuators can generate noticeable noise and vibration during operation, which may be a concern in quiet or sensitive environments. Soundproofing or vibration dampening may be required.
4. **Energy Consumption**
Compressed air systems can be energy-intensive, especially if the facility lacks efficient air compressors or pressure regulation. This may contribute to higher operational costs over time.
5. **Higher Initial Cost Compared to Some Alternatives**
While not excessively expensive, the upfront cost of a FESTO rotary table may be higher than basic manual or hydraulic alternatives, particularly for smaller-scale applications.
6. **Potential for Air Leaks**
Over time, seals and connections can degrade, leading to air leaks that reduce efficiency and increase energy consumption. Regular inspections and maintenance are necessary to mitigate this.
7. **Limited Customization for Non-Standard Applications**
If the table s standard indexing angles or configurations do not match your exact requirements, additional customization (e.g., custom mounting plates or angle adjustments) may be needed, adding complexity and cost.
8. **Skill Dependency**
Proper setup, programming, and troubleshooting of pneumatic systems require technical expertise. Training may be necessary for operators to maximize efficiency and avoid common pitfalls.
9. **Environmental Sensitivity**
Extreme temperatures, humidity, or dusty conditions can affect pneumatic performance. While FESTO equipment is robust, harsh environments may require additional protective measures.
10. **Replacement Parts Availability**
While FESTO has a strong global presence, replacement parts for older models or less common components may take longer to source compared to more widely used systems.
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### **Conclusion**
The **FESTO DHTG-140-3-A double-acting pneumatic rotary indexing table** is a well-suited choice for applications requiring **precision, speed, and reliability** in automated indexing tasks. Its **double-acting pneumatic drive** ensures efficient and controlled movements, while its **compact size and high load capacity** make it versatile for various industrial setups. The brand s reputation for **durability and modularity** further enhances its appeal, particularly for facilities already using FESTO systems.
However, potential buyers should consider the **dependence on compressed air**, **noise and vibration concerns**, and **maintenance requirements** associated with pneumatic systems. If these factors align with your operational needs and if you have a reliable air supply and maintenance plan the table offers a **high-performance, cost-effective solution** for indexing applications.
For **high-precision, high-speed indexing** in automated production lines, this table is **highly recommended**. However, if your application demands **ultra-fine control at low speeds** or operates in **extremely harsh environments**, additional considerations (such as supplementary brakes or environmental protection) may be necessary.
### **Recommendation**
**Buy the FESTO DHTG-140-3-A if:**- You need a **reliable, fast, and precise** indexing solution for automated assembly, inspection, or machining.
- Your facility already uses **FESTO pneumatic systems**, ensuring seamless integration.
- You can provide a **clean, well-regulated compressed air supply** and have a **maintenance plan** in place.
- The **compact size and load capacity** meet your workspace and workload requirements.
**Consider alternatives (e.g., hydraulic or servo-electric tables) if:**- Your application requires **ultra-low-speed, high-torque control**.
- Noise or vibration is a significant concern in your workspace.
- You lack access to a **reliable compressed air system**.
- Your budget is constrained, and a lower-cost manual or basic pneumatic table would suffice.
For most **mid-to-high-volume automated indexing tasks**, the **FESTO DHTG-140-3-A remains a strong, practical choice** due to its balance of performance, reliability, and ease of integration.
Model: DHTG-140-3-A. Plate material: Steel, galvanized. Festo DHTG-140-3-A Double-Acting Pneumatic Rotary Indexing Table 140mm 555450 S1. Gear rack/pinion.
Rotary Indexing Table. Buyer pays for all shipping costs. Cushioning: Pneumatic shock absorbed, hard characteristic curve, adjustable. Cover material: Wrought aluminum alloy.
Structural design:Gear coupling. Information on operating and pilot media: Operation with oil lubrication possible required for further use. Manufacturer: Festo. Housing material: Wrought aluminum alloy.
Type of mounting: Via through-hole and centering sleeve. Stops material: Steel, galvanized. Specifications. Position sensing: For inductive proximity sensors.
No further testing was performed. Mode of operation: Double-acting. Condition: Used. Comes in non-original packaging.
Mounting position: Any. This item is guaranteed to be as described. Parallelism of plate: 0.04mm. Positively driven motion sequence.
This rotary indexing table is in good condition with minor scuffs and scratches from previous use, but nothing that would affect functionality. Axial eccentricity of plate: 0.02mm.