LFT-G® PA66 LGF40 Granules | 40% Long Glass Fiber Nylon 66

LFT-G® PA66 LGF40 Granules | 40% Long Glass Fiber Nylon 66

Details
LFT-G® PA66 LGF40 Granules is an advanced heavy-duty thermoplastic composite material consisting of a high-crystalline Polyamide 66 (Nylon 66) matrix reinforced with 40% continuous long glass fibers through a precision pultrusion melt-impregnation process. Engineered specifically to tackle extreme dynamic loads, cyclic torque, and harsh environmental wear, this high-performance material achieves a massive 13,588 MPa tensile modulus and a 254°C heat deflection temperature. By forming an internal entangled three-dimensional fiber network inside the molded part, PA66 LGF40 provides superior dimensional stability, exceptional creep resistance, and outstanding impact energy dissipation. It serves as the ultimate lightweight, corrosion-free metal replacement for cast iron, bronze, and sintered steel in heavy machinery drives, high-voltage electrical infrastructure, and harsh-duty agricultural equipment.
* 13,588 MPa Tensile Modulus for Extreme Load-Bearing Rigidity
* 254°C Continuous Heat Deflection Temperature (HDT)
* 35 KJ/m² Notched Charpy Impact Resistance Against Violent Shock Loads
* 0.1% - 0.3% Ultra-Low Mold Shrinkage for Precision Heavy Gears
Category
PA66 LGF Compound
 
Description
Technical Parameters

Industrial Drive Supremacy: Conquering Cyclic Stress and Severe Wear

In heavy industrial machinery and power transmission systems, structural components are subjected to relentless cyclic vibrations, continuous high-torque shear, and elevated operating temperatures. Standard unfilled polymers and short-fiber plastics quickly fail due to fatigue cracking or thermal creep. The LFT-G® PA66 LGF40 Granules deliver the decisive structural upgrade required to replace traditional cast iron, bronze, and sintered alloys. By compounding 40% continuous long glass fibers into an advanced Nylon 66 resin matrix, the material forms an internal structural skeleton during injection molding. This skeletal architecture yields an immense 13,588 MPa tensile modulus, an impressive 320 MPa flexural strength, and a continuous heat deflection temperature of 254°C. Crucially, the long glass fiber network dissipates dynamic stress waves throughout the entire component, providing a 35 KJ/m² Notched Charpy impact resistance that effectively prevents catastrophic brittle fractures under sudden overload conditions.

13,588 MPa
Tensile Modulus
 
254°C
Heat Deflection Temp
 
35 KJ/m²
Charpy Impact Toughness
 
PA66-NG04
Official Grade
 

Explore the mechanics of continuous long fiber reinforcement →

Material Identification & Classifications

Property Key Specification Value
Product Grade Code LFT-G® PA66-LGF40-NG04
Polymer Matrix Polyamide 66 (PA66 / Nylon 66)
Reinforcement Architecture 40% Continuous Long Glass Fiber (LGF)
Color Availability Black and Natural (Customizable on request)
Pellet Physical Form Injection Molding Granules (10-12mm length)
Compliance Testing Standards Strictly ISO and ASTM Laboratory Certified
Flammability Classification HB @ 1.5mm (UL-94 Standard)
Primary Engineering Target Industrial planetary gears, Substation brackets, Harvester arms

Typical Properties of PA66 LGF40 NG04

Property Standard Value
Specific Gravity ASTM D-792 1.46 g/cm³
Molding Shrinkage ASTM D-955 0.1% - 0.3%
Tensile Strength ISO 527 215 MPa
Tensile Modulus ISO 527 13,588 MPa
Property Standard Value
Flexural Strength ASTM D-790 320 MPa
Flexural Modulus ASTM D-790 10,115 MPa
Notched Charpy Impact ISO 180 35 kJ/m²
HDT (1.8 MPa) ISO 75-2 254 °C

Values reflect typical dry-as-molded test specimens. Mechanical verification strictly adheres to global ISO and ASTM protocols to ensure dependable data transfer into CAD and CAE structural modeling systems.

Processing Parameters

Pre-Drying

85–105°C / 3-5 hrs
Moisture Content < 0.05%

Melt Temp

267–299°C
Injection Pressure: 70-125 MPa

Mold Temp

75–90°C
For dense fiber entanglement

Heavy Industrial & Infrastructure Applications

product-601-495

Industrial High-Torque Planetary & Helical Gears

In high-speed textile machinery, automated packaging lines, and industrial conveyor drives, traditional bronze or sintered steel gears generate severe mechanical noise and require continuous oil lubrication. PA66 LGF40 Granules replace heavy metal gears with ease. The 40% continuous long glass fiber network reinforces individual gear tooth roots against shear failure, while the low-friction nylon surface allows dry-running operation and attenuates gear mesh decibel levels by up to 10 dB.

High-voltage power grid substation insulating tension clamps and composite cross-arm brackets

High-Voltage Substation Insulating Tension Clamps

Outdoor electric transmission cross-arms and tension clamps must support tons of hanging power cable weight while enduring winter ice loading and storm winds. Traditional cast steel clamps corrode and lack dielectric insulation. PA66 LGF40 delivers extreme tensile creep resistance, while its low water absorption eliminates electrical surface tracking in pouring rain. Its 254°C heat deflection temperature provides an essential safety margin against electrical short-circuit thermal flashovers.

Agricultural combine harvester thresher lift brackets and rocker arms PA66 long fiber

Agricultural Harvester Thresher Rocker Arms

Commercial agricultural combine harvesters operate in abrasive dust, mud slurries, and face sudden impact when foreign debris enters the threshing drum. Standard short-fiber brackets snap instantaneously upon rock impingement, while cast iron parts add unnecessary weight that compacts soil. PA66 LGF40 combines a 13,588 MPa stiffness that prevents arm deflection with four times the sliding abrasion resistance of short-fiber composites.

Explore the PA66 LGF Series

STANDARD DOWNGRADE

PA66 LGF30

Offers increased melt flowability for large cooling chambers and automotive radiator water tanks with an 11,000+ MPa modulus.

View PA66 LGF30 →
CURRENT GRADE

PA66 LGF40

The high-torque mechanical workhorse. Unlocks 13,588 MPa stiffness and 254°C heat endurance for heavy-duty industrial transmission components.

MAX RIGIDITY UPGRADE

PA66 LGF50

Pushes fiber loading to 50% for maximum structural modulus, explicitly designed to replace structural steel in extreme chassis members.

View PA66 LGF50 →

Manufacturing Scale & Quality Control

As an established direct compounder of high-performance thermoplastics, LFT-G guarantees that every batch of PA66 LGF40 Granules meets uncompromising quality benchmarks. Continuous pultrusion lines with advanced gravimetric dosing monitor fiber content in real-time, ensuring exact 40% glass dispersion without resin starvation or brittle agglomerates, ready for high-precision industrial tool tooling.

ISO 9001:2015

Certified Manufacturing

SGS Audited

Verified Global Supplier

RoHS / REACH

International Compliance

Frequently Asked Questions

Q1: How does PA66 LGF40 improve the tooth shear strength and wear life of industrial gears compared to metal?

In high-torque gear trains, short glass fibers tend to fracture cleanly at the tooth root under cyclic bend fatigue. In contrast, the continuous long glass fiber network in PA66 LGF40 extends across the tooth profile and into the gear hub, bridging micro-cracks and multiplying shear resistance. Furthermore, the natural lubricity of Nylon 66 paired with glass reinforcement delivers outstanding abrasion resistance without needing external grease lubrication.

Q2: Why does PA66 LGF40 maintain dimensional tolerances under heavy dynamic vibration and moisture?

Unlike Polyamide 6 which absorbs high levels of ambient moisture causing significant expansion and loss of modulus, Polyamide 66 exhibits a much tighter crystalline structure with significantly lower equilibrium moisture uptake. Combined with the 3D long fiber skeleton, the composite demonstrates ultra-low isotropic shrinkage (0.1% to 0.3%), maintaining micro-inch tolerances in outdoor weather and high-humidity environments.

Q3: What are the key screw and mold design recommendations to prevent long fiber breakage during injection molding?

To preserve the initial 10-12 mm continuous fiber length within the finished part, molders should use a low compression screw (ratio 2:1 to 2.5:1), low back-pressure (0.3 to 0.5 MPa), generous gate sizes (at least 2.5 to 3.0 mm minimum thickness), and full-radius runners. High-shear mixing tips and restrictive pin-point gates must be strictly avoided.

Request Technical Trial Sample LFT-G technical team at exhibition

Are you designing heavy-duty industrial planetary gears, power grid substation clamps, or rugged agricultural machinery brackets that demand 13,500+ MPa stiffness and 254°C thermal stability? Contact the LFT-G materials team today to request a 25KG PA66 LGF40 Granules trial sample.

Request 25KG Trial Sample

Email Inquiry: Candyhu@lfrtplastic.com

WhatsApp Directly: +86 13950095707

 

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