Machine tending, the process of loading and unloading parts from CNC machines, lathes, or milling centers, remains one of the most repetitive and time consuming jobs in manufacturing. It demands precision and safety, yet many factories still rely heavily on human operators.
As workforce shortages grow and customers demand faster, more flexible production, automation is becoming essential. Collaborative robots, or cobots, are at the center of this shift because they offer an affordable and adaptable way to improve productivity.
Why Automate Machine Tending
Automating machine tending offers several key advantages:
1. Labor efficiency
Global manufacturing continues to face skilled labor shortages. Automation helps companies maintain output while allowing human workers to focus on higher value tasks such as programming, inspection, and process improvement.
2. Improved safety
Manual loading and unloading around rotating parts, cutting tools, or hot surfaces can expose operators to risk. Cobots take on these repetitive and hazardous tasks, improving workplace safety.
3. Consistency and quality
A robot can perform the same motion every time with steady precision, improving product consistency and reducing defects.
4. Around the clock productivity
Cobots can run overnight or during breaks, extending production hours without increasing labor costs.
5. Faster return on investment
By increasing uptime and reducing waste, machine tending automation quickly pays back its initial investment.
These benefits are especially valuable in today’s high mix, low volume manufacturing environments, where flexibility and uptime matter more than ever.
Collaborative Robots: The Right Fit for Machine Tending
Cobots are designed to be safe, flexible, and simple to program. Unlike traditional industrial robots that require complex safety cages and dedicated setups, cobots can work side by side with people.
For small and medium manufacturers, cobots make automation accessible by allowing quick adjustments for diverse production lines, crucial for efficiency. While slower than traditional industrial robots, their primary advantage for high-mix, low-volume orders lies in their reliability and ease of setup, rather than speed, making them an appropriate choice.
But the success of a cobot system depends heavily on one crucial component – the gripper.
Choosing the Right Gripper for Machine Tending
The gripper is the cobot’s hand. It determines what parts can be handled, how reliably, and under what conditions. Selecting the right gripper depends on several key factors:
- Part characteristics – shape, material, weight, and surface texture.
- Process requirements – precision, cycle time, and handling speed.
- Environmental conditions – exposure to dust, coolant, or high humidity.
Here is a closer look at the common gripper types used in machine tending:
Pneumatic Grippers
- Strengths: Fast response, strong grip, widely available.
- Limitations: Require compressed air, bulky setup, and complex cabling. The limited stroke often leads to frequent reconfiguration for different part sizes and increases maintenance needs.
Vacuum Grippers
- Strengths: Suitable for flat or smooth surfaces like metal sheets or plastic parts.
- Limitations: Struggles with porous, oily, or irregular surfaces, can lose suction in wet environments.
Smart Grippers (like SusGrip)
- Strengths: Electric drive removes the need for costly external air compressors and bulky tubing. Compact installation with direct connection to the robot wrist simplifies cabling and setup.
- Limitations: May be affected by the high humidity and coolant exposure common in machine tending environments. (This can be addressed with improved protection ratings and sealed designs like those used in SusGrip.)
Considering the Machine Tending Environment
CNC environments often expose equipment to dust, metal chips, oil mist, and coolant. A gripper that cannot withstand these conditions may experience performance degradation or mechanical failure over time.
This is where SusGrip stands out. Built with a water and dust resistant design, it operates reliably even in harsh machining environments. Its structure protects internal components from coolant and debris, ensuring consistent performance across long shifts.
How SusGrip Fits the Application
Apicoo Robotics developed the SusGrip series to simplify and strengthen cobot machine tending operations.
- Stroke: 128 mm (SusGrip 2F) and 150 mm (SusGrip 3F)
- Payload: 5 kg
- Motion: Parallel and steady across full stroke
- Control: Modbus and Digital IO, easy integration with PLCs, HMIs, or direct control via cobot teach pendants
- Compatibility: Works seamlessly with Universal Robots, JAKA, Techman, FANUC CRX, and Doosan cobots
SusGrip’s long stroke allows it to grip a wide range of parts without frequent tool changes — reducing downtime and improving overall equipment efficiency. Combined with its high payload and robust construction, SusGrip offers manufacturers a way to improve ROI while maintaining reliability in demanding environments.
Best Practices Before Investing
- Map your process first. Identify repetitive loading and unloading tasks where automation brings clear value.
- Define your part range. Understand size, weight, and geometry to match the right gripper type.
- Evaluate the environment. If your process involves coolant, oil, or dust, choose a gripper built for those conditions.
- Test before scaling. Start with one cell or one type of part to validate performance and ROI.
Final Thoughts
Machine tending automation does not need to be complicated. With the right combination of cobot and gripper, manufacturers can achieve higher productivity, safer operations, and better use of skilled labor.
SusGrip was designed for exactly that — to make automation practical, durable, and efficient for everyday manufacturing.
👉 For your machine tending cobot cell, learn more or request a SusGrip trial unit here: apicoorobotics.com/trial