Monitor Drawbar Clamping Force. Improve Spindle Reliability. Prevent Costly Downtime.
Overview:

The OTT Power-Check 2, the industry’s leading drawbar force gauge, now integrates seamlessly with VibePro 10. This powerful combination now allows manufacturers and maintenance teams to measure, transmit, store, and trend spindle clamping force data directly within the VibePro 10 predictive maintenance platform. With drawbar force measurements, vibration and machine condition monitoring data all in one system, users will get a complete picture of the spindle’s performance and health.
Routing testing of a drawbar helps identify developing issues with the retention knob, tool-clamping and the drawbar itself, before they lead to costly failures.
Why Monitor Drawbar Pull Force?
Drawbar pull force is critical for both tool retention and overall spindle performance. Reduced clamping force can lead to the following issues:
- Toolholder movement
- Excessive vibration and chatter
- Poor surface finishes
- Reduced dimensional accuracy
- Premature spindle wear
- Unplanned downtime
Routing clamping monitoring allows for early wear detection which helps extend spindle and drawbar life. It also helps make sure you are maintaining OEM clamping force specifications.
This all leads to reduced downtime, improved part quality, along with greater confidence in machine performance.
Power-Check 2 Drawbar Pull Force Gauge Features
- Integrates with Vibepro 10 – Wirelessly transmits drawbar pull-force data into VibePro 10 through the GTI BLE Interface. Lets you gather force measurements along with machine condition monitoring data to help identify developing spindle and tool-clamping issues prior to failure.
- Accurate Real-Time Measurements – Precise drawbar pull-force measurements are shown on a digital display.
- Data Logging & Export – Data can be either stored locally or exported. This allows for trend analysis, maintenance reporting, and performance benchmarking.
- Adjustable Sleeve – Simulates toolholder tolerance variations for clamping system setup, validation, and troubleshooting.
- Exchangeable Adapters – HSK, CAT/SK, KM, BIG PLUS®, and Capto/PSC.
- Energy-Saving Design – The system features intelligent power management which helps extend battery life. This helps ensure reliable operation during routine maintenance inspections and long-term monitoring programs.
Supported Taper Standards
Supports Common Taper Standards: HSK, CAT/SK, KM, Big Plus, and Capto/PSC
Applications
The Power-Check 2 spindle clamp force tester is ideal for many applications including:
- CNC machining centers
- High-speed spindle applications
- Aerospace manufacturing
- Automotive manufacturing
- Precision machining operations
- Mold and die production
- Preventive maintenance programs
- Predictive maintenance initiatives
- Reliability-centered maintenance programs
Available Configurations
Power-Check 2 Drawbar Pull Force Gauge Kit + BLE Interface
Ideal for existing VibePro 10 users looking to add drawbar force monitoring to their current predictive maintenance program.
Complete Monitoring Solution
Includes the Power-Check 2 Drawbar Force Gauge, required adapters, GTI BLE Interface, and VibePro 10 Monitoring System. This configuration is ideal for new deployments seeking a comprehensive spindle condition monitoring solution.
Adapter Kits
Available for HSK, CAT/SK, KM, BIG PLUS®, and Capto/PSC spindle interfaces.
Get Started with Power-Check 2 Today
Improve spindle reliability, reduce unplanned downtime, and gain greater visibility into tool-clamping performance
with the OTT Power-Check 2 and VibePro 10.
Call 866.719.2645 or fill out our contact form today to learn how wireless drawbar pull-force monitoring
can strengthen your predictive maintenance program.
Frequently Asked Drawbar Force Questions
What is drawbar pull force?
Also known as tool retention force, drawbar pull force is the clamping force that holds a toolholder in a machine spindle.
Why is drawbar force important?
Insufficient drawbar force this can cause many undesirable issues. These include tool movement, vibration, poor part quality, excessive spindle wear, and increased machine downtime.
How does Power-Check 2 support predictive maintenance?
Power-Check 2 is a drawbar force gage that captures drawbar force measurements that are transmitted into VibePro. The data is stored, trended, and can be reviewed over time. This helps maintenance teams identify weakening clamping force early – before it leads to spindle performance problems or unplanned downtime.
How does Power-Check 2 integrate with VibePro 10?
Power-Check 2 captures drawbar force measurements that are transmitted into VibePro. The data is stored, trended, and can be reviewed over time. This helps maintenance teams identify weakening clamping force early – before it leads to spindle performance problems or unplanned downtime.
What problems can low drawbar force cause?
Low drawbar force can contribute to several issues such as poor tool retention, toolholder movement, cutting instability, chatter, reduced accuracy, poor surface finish, and accelerated spindle or tooling wear.
How often should I check drawbar force?
Testing frequency depends on many factors including machine utilization, operating conditions, production requirements, and internal maintenance practices. Many teams will conduct drawbar force testing as part of a preventive or predictive maintenance program.
Which spindle taper standards are supported?
Power-Check 2 supports HSK, CAT/SK, KM, BIG PLUS®, and Capto/PSC spindle interfaces.
Can existing VibePro 10 users add Power-Check 2?
Yes. Existing VibePro 10 users can add the Power-Check 2 Gauge Kit with adapters and the GTI BLE Interface to add clamping force monitoring to their current setup.
Is Power-Check 2 only for troubleshooting?
No. While it is useful for troubleshooting tool-clamping issues, Power-Check 2 is also valuable for routine inspections, reliability programs, machine acceptance checks, and long-term spindle performance monitoring.
Who should use Power-Check 2?
Power-Check 2 is useful for maintenance teams, reliability engineers, CNC supervisors, manufacturing engineers, and service teams responsible for spindle performance, machine uptime, and part quality.
What data can be exported?
Power-Check 2 measurements can be logged and exported for further analysis, maintenance documentation, trend review, and performance benchmarking.
Does drawbar force affect part quality?
Yes. Proper tool retention supports machining stability, accuracy, and surface finish. A loss of clamping force can increase the risk of tool movement, chatter, and dimensional variation.
Can Power-Check 2 help maintain OEM specifications?
Yes. Routine pull-force testing helps verify whether spindle clamping force remains aligned with OEM specifications or internal maintenance standards.
What is the benefit of trending drawbar force?
Trending helps reveal gradual changes that may not be obvious from a single measurement. This can support earlier maintenance decisions and reduce the risk of unexpected spindle or clamping system issues.
Is Power-Check 2 suitable for high-speed spindles?
Yes. Power-Check 2 is designed for CNC spindle applications where tool retention, spindle reliability, and consistent clamping force are important to machining performance.