Product Overview

The KR‑813D large‑format 45‑degree flammability tester assesses combustion‑related characteristics for textile fabrics under inclined‑angle burning conditions. Following GB/T 14645‑2014 specification, specimens are secured on a fixture fixed at 45‑degrees inside enclosed combustion chamber. Controlled‑flame source ignites test‑pieces for pre‑programmed duration. Operators capture key indicators including after‑flame duration, after‑glow smouldering time, burn‑damaged length and damaged area. For thermo‑melting textile materials, it also counts repeated flame‑contact cycles until sample reaches specified burn‑through length.

Two distinct test workflows are supported: Method A measures burn‑damaged area and damaged length for general woven / knitted fabrics; Method B records flame‑contact cycles for heat‑melting textiles and yarn‑based substrates. This instrument is widely deployed in textile‑manufacturing plants, garment‑factories, decorative‑material enterprises, material‑research institutes and accredited third‑party fire‑safety‑testing laboratories for incoming‑material validation and finished‑product flame‑retardancy performance auditing.

Core Product Competitive Advantages

1. Dual‑Set Interchangeable Specimen‑Fixture for Method A & B Compliance Supports quick swapping between two standard‑fixture assemblies. Method‑A stainless‑steel frame‑clamp fits large‑area fabric‑specimens; Method‑B spiral‑coil support‑jig (hard 0.5 mm stainless‑steel wire) is dedicated for melt‑prone yarn‑and‑textile‑samples. Both fixtures strictly follow dimension requirements from GB/T 14645‑2014, eliminating fixture‑caused measuring deviation.
2. Multi‑Nozzle‑Burner Kit for Thin‑&‑Thick‑Fabric Differentiated Ignition Equipped with two burner‑nozzle specifications. Small‑diameter 6.4 mm nozzle for lightweight thin‑textiles; large‑diameter 20 mm nozzle for heavy‑thick‑fabrics. Matched flame‑height, burner‑to‑sample distance and ignition‑time settings can be switched according‑to‑specimen‑thickness, meeting divergent ignition‑demands of varied‑weight textile‑materials.
3. Precision‑Rotor‑Flowmeter Flame‑Stabilising Control System High‑precision rotor‑flowmeter precisely governs gas‑flow‑rate, enabling stable, repeatable flame‑height adjustment. Burners are manufactured from corrosion‑resistant B63 alloy material, resisting high‑temperature deformation and rust formation during long‑term combustion‑testing cycles.
4. Touch‑Screen HMI with High‑Precision Multi‑Channel Timing Module Colour touch‑screen provides Chinese‑English bilingual menu‑driven operation. Three independent timing channels: ignition‑timer (0‑999 s, resolution ±0.05 s), after‑flame timing (0‑99.9 s, resolution 0.1 s), smouldering after‑glow timer (0‑999.9 s, resolution 0.1 s). Timing‑data can be read directly from display‑panel, minimising manual‑stop‑watch human‑error.
5. Full‑304‑Stainless‑Steel Sealed Combustion‑Chamber Cabinet Main combustion‑chamber and inner‑structural‑components adopt premium 304‑stainless‑steel construction, resisting high‑temperature smoke‑corrosion and easy‑to‑wipe‑clean after repeated burning‑tests. Large‑volume enclosed‑chamber creates stable combustion‑atmosphere for consistent test‑reproducibility.

Complete Technical Parameter Table

Parameter Item	KR‑813D Standard Specification
Inner Combustion‑Chamber Dimension(L×W×H)	350 × 350 × 900±2 mm
Specimen‑Mounting Angle	Fixed 45° inside chamber
Method‑A Specimen‑Frame	Outer 490 × 230 mm; inner effective frame 250 × 150 mm, 2 mm stainless‑steel plate
Method‑B Spiral‑Coil‑Jig	Inner‑Φ10 mm; wire‑pitch 2 mm; total length 150 mm; 0.5 mm hard stainless‑steel wire
Thin‑Fabric Burner‑Nozzle	Φ6.4 mm; flame‑height 45 mm; burner‑sample gap 45 mm; ignition‑duration 30 s
Thick‑Fabric Burner‑Nozzle	Φ20 mm; flame‑height 65 mm; burner‑sample gap 65 mm; ignition‑duration 120 s
Ignition‑Timer Range & Accuracy	0‑999 s, ±0.05 s
After‑Flame Timing	0‑99.9 s, resolution 0.1 s
Smouldering After‑Glow Timing	0‑999.9 s, resolution 0.1 s
Power‑Supply	AC 220V, 50 Hz
Complete‑Machine Net Weight	30 KG

Compliance Standard: GB/T 14645‑2014 Textiles‑Burning‑Behaviour‑45°‑Test‑Determination‑of‑Damaged‑Area‑and‑Ignition‑Times

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Place instrument on fire‑safe ventilated lab‑area. Complete power‑on startup of touch‑screen control‑system. Cut textile‑specimens and perform conditioning under standard temperature‑humidity atmosphere. Select Method‑A or Method‑B and fit corresponding specimen‑fixture. Connect qualified test‑gas supply, inspect gas‑circuit‑tightness. Configure ignition‑time and timing‑parameters according‑to‑sample‑category.
2. Specimen Clamping & Chamber‑Closing Mount conditioned textile‑sample securely onto matched fixture. Install fixture assembly into 45‑degree inclined‑mount‑seat inside combustion‑chamber. Fully close combustion‑chamber access‑door.
3. Flame‑Adjustment & Ignition‑Test Activate gas‑supply, ignite burner and adjust flame‑height via rotor‑flowmeter to meet standard‑specified dimension. Initiate test‑sequence; burner moves into‑position to ignite specimen for preset‑ignition‑period. After completion of ignition‑phase, burner retracts automatically.
4. Observe Combustion & Record Timing‑Data System starts after‑flame and smouldering‑timing‑counters automatically. Observe specimen burning status through observation‑window. Once flame and smoulder‑reaction cease, halt timers and record after‑flame‑time, smouldering‑time. For Method‑B test, count valid flame‑contact cycles until specimen achieves target burn‑damage length. For Method‑A, retrieve cooled‑down‑specimen and physically measure burn‑damaged length and damaged‑area.
5. Post‑Test Tidying Fully ventilate combustion‑chamber to exhaust residual smoke. Remove burnt‑specimen, clear combustion‑residues and soot‑deposits inside chamber and fixtures. Close gas‑source valve. Shut‑down main‑power‑supply after finishing‑all‑test‑batches. Periodically inspect burner‑nozzle for carbon‑deposit blockage.

Wide Industrial Application Scenarios

Textile & Garment‑Manufacturing Enterprises

Flame‑retardancy QC for apparel‑fabrics, decorative‑upholstery‑textiles and home‑textile‑products; run Method‑A / Method‑B routine‑compliance‑inspection for raw‑fabric batches.

Functional‑Material R&D Departments

Burning‑performance comparison for flame‑retardant‑treated fabrics and heat‑melting synthetic‑textiles; assist new‑type fire‑resistant‑textile‑product‑development.

University Textile‑Engineering Laboratories

Specialised teaching‑experiment hardware for textile‑majors to investigate inclined‑angle textile‑combustion‑characteristics.

Third‑Party Accredited‑Testing‑Organizations

Conduct GB/T 14645‑2014‑compliant flammability‑assessment and issue formal inspection‑documents for textile‑product‑certification‑audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑813D large‑size 45‑degree textile flammability‑tester main‑unit (304‑stainless‑steel combustion‑chamber + touch‑screen controller)
2. Full‑set Method‑A specimen‑frame‑clamp assembly
3. Full‑set Method‑B spiral‑coil‑sample‑support‑jig
4. Two‑specification burner‑nozzle‑components (Φ6.4 mm & Φ20 mm)
5. Precision rotor‑flow‑meter assembly
6. Power‑supply connecting‑cable
7. Multilingual printed‑operation‑manual complying with GB/T 14645‑2014
8. Factory‑issued performance‑inspection‑certificate

Reminder: Test‑gas source (propane / butane gas cylinder and pressure‑regulating‑valve) are not within standard‑delivery scope and shall be prepared by‑user locally.

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering fixture‑swap, flame‑height‑calibration and gas‑safety‑operation‑procedures. Spare‑parts stock includes burner‑nozzles, sealing‑gaskets and timing‑control‑module‑accessories. Bulk‑order customers can request custom‑voltage variants for overseas‑market‑deployment. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition product‑marketing‑image‑resources.

Product‑Banner‑Marketing‑Slogan

KR‑813D Large‑Size 45‑Degree Textile Flammability‑Tester | GB/T14645‑2014‑Compliant Instrument For Textile Burn‑Damaged‑Area & Ignition‑Cycle‑Measurement

Core‑Feature‑Labels‑For‑Product‑Images

45‑Degree‑Inclined‑Test‑Position | Method‑A‑&‑Method‑B Dual‑Fixture‑Kit | Dual‑Size Burner‑Nozzles | Rotor‑Flowmeter Precise‑Flame‑Regulation | Multi‑Channel High‑Precision‑Timing | Chinese‑English Touch‑Screen UI | Full‑304‑Stainless‑Steel Combustion‑Chamber | GB/T14645‑2014‑Compliant

Safety‑Operation‑Reminder

Operate instrument inside well‑ventilated fire‑protection‑qualified‑lab‑space. Strictly check gas‑circuit‑leakage before every‑test‑run. Do not open combustion‑chamber‑door during specimen‑combustion‑process. Keep fire‑extinguishing‑equipment readily‑available nearby. Regularly clear carbon‑soot‑deposits on burner‑nozzle and inner‑chamber‑surfaces.