Extended-range touchless wheel aligner clamp
QC20
A tire-grip clamp for larger wheel assemblies.
QC20 brings the QC Series self-centering tire grip and gear-driven lock to larger wheel assemblies. Its extended capacity supports oversized passenger, light-truck and off-road applications without separate extension arms within the published range.
How it is used
Mount the target without contacting the wheel.
Built for workshops that service larger tire assemblies while requiring protection for finished wheels, quick clamp installation and stable target positioning.
Confirm tire diameter, vehicle clearance, clamp condition and compatibility with the selected aligner configuration before use.
- 01
Tire-sidewall grip
The self-centering arms engage the tire rubber instead of the wheel surface during normal use.
- 02
Gear-driven lock
Turn the flywheel for rapid engagement, then use the dedicated lock and unlock mechanism to secure or release the clamp.
- 03
Extended integrated capacity
QC20 accommodates tires up to 43 inches without separate extension arms within its published range.
- 04
Balanced handling
At 2.7 kg (5.9 lb) per clamp, QC20 combines extended capacity with manageable weight for regular shop use.
Specifications
QC20 product information.
Confirm clamp and target compatibility with the selected aligner before ordering.
- Model
- QC20
- Clamp type
- Self-centering three-point tire grip
- Maximum tire diameter
- Up to 43″
- Weight per clamp
- 2.7 kg (5.9 lb)
- Operating mechanism
- Turning flywheel with dedicated lock and unlock
- Rim contact
- No direct rim contact during normal use
- Extension hardware
- Not required within the published capacity
- Vehicle focus
- Oversized, light-truck and off-road applications
- System compatibility
- Compatible TreadPlus 9000 Series configurations
Frequently asked questions
About the QC20.
Does QC20 use the same tire-grip method as QC15?
Yes. QC20 also uses a three-point tire-sidewall grip intended to avoid direct rim contact during normal use.
What tire range does QC20 cover?
QC20 supports tire assemblies up to 43 inches in outside diameter. Confirm vehicle clearance and aligner compatibility before ordering.
How does the clamp lock?
A high-speed turning flywheel moves the three gripping arms. A separate lock and unlock mechanism secures the gear-driven structure after engagement.
Does the clamp eliminate tire-sidewall flex?
No tire-mounted clamp can eliminate sidewall flex. The gear-locked mechanism is designed to prevent the clamp itself from slipping against the tire so runout compensation can account for the mounted assembly consistently.
When should QC20 be selected instead of QC15?
QC20 should be considered for tire assemblies that exceed the QC15 capacity or where the larger clamp range is required.
Model comparison
Need a different tire range?
QC15 supports up to 32″ tire outside diameter for passenger and light-commercial vehicles.
Product inquiry
Confirm the right clamp for your aligner.
Tell us the aligner model, target configuration and largest wheel assemblies normally serviced in the bay.