Typical thermoform line problems behind the RFQ
- •Tray flakes turn dusty or stringy after the last knife change
- •Skeleton regrind gets noisy and bed-knife wear is uneven
- •The buyer needs replacement knives from a worn sample without a full OEM drawing
Why PET thermoform recycling needs matched rotor and bed knives
NAPCOR notes that PET bale specs now cover PET bottles, bottles with thermoforms, and PET thermoforms, and that trays and clamshells can be recycled when collection and processing systems are in place.
Where these knives sit on tray and skeleton lines
Rapid ThermoPRO is described for low-noise granulation of thermoformed skeletal waste with easier knife replacement access. Compare plastic granulator knives, bed knives, and crusher blades.
What to send for a thermoform knife quotation
Send tray material, sheet thickness, machine model, moving/fixed knife position, dimensions, hole pattern, and old blade photos. If dust or noise increased, review the knife-gap checklist and use the contact form.
Representative parts for this line
Use the closest shape below as your RFQ reference, then send dimensions or old-blade photos for fit review.
PGK-003
Bottle Granulator Insert Knife
Bottle Granulator Insert Knife is built for pet bottle granulation and bottle flake size reduction. Available in SKD11 / D2 / HSS / 9CrSi for clean regrind, stable clearance, and practical resharpening cycles. The insert-style format fits compact cutter seats and short replacement positions.
GBK-001
Granulator Bed Knife
Granulator Bed Knife is built for granulator bed knife replacement and pet bottle and rigid plastic grinding. Available in SKD11 / D2 / HSS / tungsten carbide for stable rotor clearance and consistent granulation quality. The insert-style format fits compact cutter seats and short replacement positions.
GBK-004
Granulator Stator Knife
Granulator Stator Knife is built for granulator bed knife replacement and pet bottle and rigid plastic grinding. Available in SKD11 / D2 for stable rotor clearance and consistent granulation quality. The insert-style format fits compact cutter seats and short replacement positions.
PCB-001
Plastic Crusher Profile Blade
Plastic Crusher Profile Blade is built for pet bottle crushing lines and rigid plastic size reduction. Available in D2 / HSS / 9CrSi / H13 for wear resistance, stable knife clearance, and repeatable sharpening. The profiled body suits fixed or rotary stations where alignment and edge exposure matter.
Related knife categories
Related articles
Granulator Knife Gap Checklist: Reduce Dust, Fines, and Noise
A practical rotor-to-bed-knife inspection flow for recyclers seeing dusty regrind, noisy cutting, or repeated knife damage after a blade change.
Read articleHow to Choose the Right Crusher Blade
Material grades, machine compatibility, and line type—plus where to find matching products in our catalog.
Read articlePET thermoform tray recycling knives FAQ
Can PET trays and clamshells be recycled?+
Which knife positions should be checked when tray regrind gets dusty?+
Can you quote from a worn thermoform knife sample?+
Primary sources used on this page
External claims were limited to these official references and then mapped to the RFQ workflow below.
NAPCOR
PET Design & Bale Spec Guidelines
Defines PET bale categories including PET thermoforms and states trays/clamshells can be recycled when suitable systems exist.
View sourceRapid Granulator
ThermoPRO
Describes low-noise granulation of thermoformed skeletal waste and easier access for knife replacement.
View sourceNeed PET tray or thermoform skeleton knives checked against your old sample?
Send moving and fixed knife photos, sheet thickness, machine model, hole spacing, and the symptom you see in tray flakes or skeleton regrind.