* Specifications are subject to change without notice. Contact us for the latest technical data.
What This Machine Solves
Three production problems eliminated by this machine — with engineered, measurable solutions.
The Problem
Standard cutters bog down or sag wires on flame-retardant graphite EPS above 30 kg/m³ — leaving fuzzy edges, thickness drift, and high reject rates on FR insulation orders.
How This Machine Solves It
SPB-Q's A-type oscillation frame plus 32 kW heating (vs 26 kW on B-series) drives 0.7mm nichrome wires through 30-45 kg/m³ EPS at 1-1.5 m/min with clean, glass-smooth cuts. ±0.3mm tolerance hold across the full 6,000mm block length.
The Problem
Hospital, school, and high-rise façade insulation orders demand ±0.3mm tolerance for QC sign-off — looser-tolerance cutters force a manual sort or rework step that eats 8-12% of shift time.
How This Machine Solves It
Servo-driven A-frame with low-vibration pivots holds ±0.3mm across all 60 wires. Class-B1 fire-rated boards ship straight from de-stacker to QC without rework. Production logs every parameter for traceability audits.
The Problem
FR additives in graphite EPS coat the cutting wires and the scrap belts, shortening wire life by 40-60% and clogging recovery systems on standard cutters.
How This Machine Solves It
Heavier 0.4-0.7mm nichrome wires with active cooling fans extend service life 2-3× on FR material. Self-cleaning scrap belts plus a pneumatic vacuum loop sized for FR-dust handling sustain 95-98% recovery even on graphite-EPS.
Inside the Machine — Core Components
Eight engineered subsystems that make this cutting line production-grade. Each component is sourced, built, and tested for industrial duty cycles.
1. Reinforced Cutting Frame (Q345B Heavy-Duty)
Function
Provides the rigid reference plane for premium-tolerance cuts on heavy 45 kg/m³ FR-EPS blocks. Reinforced design absorbs the higher cutting forces of dense material without flex.
Engineering Details
Q345B structural steel with 20-25% more material than SPQ-B frame. Precision-machined rails to ±0.03mm flatness over 6,000mm. Anti-vibration mounts and seismic-rated feet for industrial sites with adjacent press lines.
2. Servo Wire-Setting Head (Upgraded Precision)
Function
Positions all 60 horizontal wires with ±0.15mm repeatability (tighter than SPQ-B's ±0.2mm). Designed for the premium-tolerance market where small wire-position drift = QC reject.
Engineering Details
Yaskawa Σ-7 or Mitsubishi MELSERVO J5 1.5 kW servo with absolute encoder. Heavy-duty pneumatic wire-gripper rated for 0.7mm wire. Pattern library doubles as audit trail for ISO 9001 traceability.
3. A-Type Oscillation Cutting Frame
Function
The signature SPB-Q differentiator: a pivoting A-frame that holds wires under uniform tension while oscillating at controlled amplitude. Eliminates wire flutter that plagues B-frames on dense material.
Engineering Details
Servo-driven oscillation 2-4mm amplitude at 40-60 Hz (tuned for FR-EPS). Pivoting geometry removes the lateral wire drag of fixed B-frames. 32 kW heating distributed via solid-state contactors with per-wire current monitoring.
4. High-Density Conveyor & Roller Bed
Function
Moves heavy FR-EPS blocks (up to 800kg per block) through the cutting stations with no slippage and no flex. Surface-hardened to prevent wear from dense block edges.
Engineering Details
Hardened steel rollers (HRC 55+) with reinforced bearings rated for 1.5× the load of SPQ-B rollers. Side-clamp pneumatic rams sized for 6 bar (vs 4 bar standard). VFD-controlled with 0.05% speed accuracy.
5. PLC + Premium HMI (Production Logging)
Function
Supervises every machine state plus logs every parameter for QC audits. Critical for hospital/school/government FR-insulation contracts requiring traceability.
Engineering Details
Siemens S7-1500 PLC with 12.1" Weintek HMI (larger screen than SPQ-B 10.1"). Production-log export to USB or Ethernet/IP gateway for MES integration. Multi-user accounts (operator/supervisor/QA engineer/auditor) with audit trail. Local log retains 10,000 events.
6. FR-Capable Three-Direction Scrap Recovery
Function
Captures FR-EPS trim cuts without clogging — the FR additives that wreck standard recovery systems are routed through a self-cleaning loop sized for the dust load.
Engineering Details
Top trim shaver with reinforced vacuum suction. Self-cleaning side belts (FR-dust resistant coating). Bottom roller-bed sweep collects fines. Combined Ø200mm pneumatic conveyor (vs Ø150 on SPQ-B) routes FR-scrap up to 50m to regrind silo.
7. 32 kW Heavy-Duty Power Distribution
Function
Delivers stable heating current to all 74 cutting wires at 32 kW total — 23% more heat than SPQ-B to compensate for FR-EPS's higher cutting resistance.
Engineering Details
32 kW heating power distributed via Schneider TeSys solid-state relays. Each wire current monitored; deviation > 12% triggers wire-break alarm (tighter than SPQ-B's 15% threshold). Stainless busbar with FR-dust-resistant termination.
8. Premium Safety + Audit Compliance
Function
Full CE compliance plus the audit features required for QC-critical FR-insulation contracts — every safety event logged with timestamp and root cause.
Engineering Details
CE certification per EN 60204-1 + EN ISO 13849-1 PLd. Polycarbonate-glazed safety cage with redundant interlocks. Four e-stop mushrooms (100ms Category 0 stop). Thermal cutoff with auto-shutdown logged. Optional light-curtain (Type 4 IEC 61496-1) for unattended cells.
Working Principle
SPB-Q runs the same six-station continuous cutting flow as the SPQ-B family, but with an A-type oscillation frame replacing the B-frame, a 32 kW heating system replacing the 26 kW, and 0.7mm nichrome wires replacing 0.5mm — all engineered to handle 30-45 kg/m³ flame-retardant graphite EPS at premium-tolerance specifications.
Step 1
1. High-Density Block Storage
Reinforced carousel storage rated for FR-EPS blocks up to 1.26m tall (heavier than standard density). Aging buffer holds 6-12 blocks awaiting cutting.
Step 2
2. Tilting & Alignment (Heavy-Duty)
High-tonnage hydraulic tilter rotates FR-EPS blocks from mold to cut position. Reinforced side-clamps square the dense block against precision rails — critical for the ±0.3mm tolerance specification.
Step 3
3. Horizontal Cut — A-Frame Oscillation
Up to 60 horizontal 0.7mm nichrome wires on the A-type pivoting frame slice the dense block into sheets. Low-vibration servo pivots maintain wire geometry under heavy cutting load — the single biggest source of tolerance loss on FR material.
Step 4
4. Vertical Cut (Heavy-Density Tuned)
Vertical wire bank rotates 90° and divides each sheet into width-specific strips. Tuned for FR-EPS resistance — slower speeds (~1 m/min) but consistent geometry.
Step 5
5. Cross-Cut (Premium Wires)
Single transverse 0.7mm wire performs the final length cut. PLC coordinates fire timing between horizontal and vertical passes — no manual queue management.
Step 6
6. De-Stacking + FR-Scrap Recovery
Finished FR-rated boards layered on output conveyor. Self-cleaning pneumatic recovery handles FR-additive-dust without clogging, routing scrap to the regrind silo for back-feeding the pre-expander.
Engineered Performance Advantages
Every advantage backed by measurable specs — no marketing claims without data.
Thickness Tolerance (Premium)
±0.3 mm
vs SPQ-B family: ±0.5 mm / industry typical: ±1.5 mm
A-frame servo pivots + heavier wire stock + reinforced frame hold ±0.3mm even on 40 kg/m³ FR-EPS — meets EU CE and US ASTM C578 tolerance specs for premium insulation.
Max Density Handled
45 kg/m³
vs SPQ-B series: 35 kg/m³
32 kW heating + 0.7mm wires + heavy-duty roller bed sustain throughput on graphite-EPS and high-density FR boards that bog down standard cutters.
Heating Power
32 kW
vs SPQ-B: 26 kW
More heat = consistent wire temperature on dense material = clean cuts. Critical for graphite-EPS where insufficient heat causes drag and shoulders on the cut face.
Wire Service Life on FR-EPS
600-1000 h
vs thinner wires on standard cutters: 250-400 h on FR
Heavier 0.4-0.7mm nichrome wires + cooling fans extend service life 2-3× on flame-retardant graphite EPS where thinner wires get coated and embrittled by FR additives.
A-Frame Cutting Speed
1-1.5 m/min
vs high-density manual cut: <0.4 m/min
Even on 40 kg/m³ FR-EPS, SPB-Q sustains 1+ m/min — making premium-tolerance production economically viable at scale.
Real Production Applications
See where this machine fits in real factories.
Fire-retardant graphite EPS insulation board production for high-rise hospital and school construction — Class B1 fire rating
External wall insulation system (EWI) sheets in 30-40 kg/m³ density for energy-retrofit projects on existing buildings
Industrial cold storage panel cutting with ±0.3mm tolerance for refrigerated warehouse and food-processing facilities
EPS testing-lab specimen preparation — uniform density blocks for thermal conductivity and compressive strength QC
Premium export-grade insulation boards for EU and North American markets — meets ASTM C578 and EN 13163 tolerance specs
SPB-Q feeds directly into the SPB packing machine for shrink-wrapped pallet output of premium FR-EPS boards
Machine Configuration
Industrial-grade components from established global brands — every part traceable.
Component
Brand / Spec
Detail
PLC Controller
Siemens S7-1500
CPU 1515-2 PN with extended I/O — for premium production-logging applications
HMI Touchscreen
Weintek MT8121iE
12.1" color TFT, multi-user audit logging, multilingual UI
Servo Drive (Wire-Setting)
Yaskawa Σ-7 or Mitsubishi J5
1.5 kW servo with 23-bit absolute encoder; ±0.15mm repeatability
VFD (Conveyor)
Inovance MD500 / Yaskawa A1000
7.5 kW vector-control; 0.05% speed accuracy for heavy-load steady traverse
Cutting Wire
PEDOC Ni-Cr 0.4-0.7mm
Heavy nichrome alloy for FR/high-density EPS; 600-1000h service life
Contactors & Relays
Schneider TeSys
Solid-state heating relays + thermal protection per wire bank
Pneumatic Components
SMC / Festo
Higher-pressure side-clamps and tilter cylinders (rated 6 bar)
Customer Case Studies
Customer details available on request.
Saudi ArabiaYear: 2024
Configuration
SPB-4000Q (premium series) + PE-1800 + BM-1800 — 10,000 m² monthly Class-B1 fire-retardant EPS for high-rise construction
Outcome
Won 3-year supply contract with major Gulf construction firm based on ±0.3mm tolerance + production logging audit trail. Reject rate stayed under 1.2% across 18 months of FR-grade output.
IndiaYear: 2023
Configuration
SPB-5000Q (I-type) + integrated SPB packing — 7,500 m² monthly external-wall-insulation (EWI) for energy retrofit projects
Outcome
Cut variation from ±1.2mm (old manual line) to ±0.3mm on first quarter of operation; rework station eliminated; output per shift up 40%.
Maintenance & Safety
A clear schedule keeps the line running. Built-in safety systems protect operators and product alike.
Maintenance Schedule
Daily (every shift)
Clean FR-EPS dust from cutting frame, scrap belts, and A-frame pivots — FR additives accelerate dust accumulation. Inspect 0.7mm wires for nicks or thinning; replace any showing > 15% diameter loss. Check pneumatic pressure at 0.6-0.7 MPa.
Weekly
Re-tension all 74 cutting wires to spec (4-10 N each — higher than SPQ-B due to thicker wire). Lubricate roller bearings + A-frame servo bearings with NLGI-2 grease. Check VFD heatsink and cabinet filters. Verify all safety interlocks.
Monthly
Verify wire-setting head positioning (±0.15mm spec). Recalibrate A-frame oscillation amplitude (2-4mm spec). Inspect electrical cabinet terminals; torque to 4 Nm. Service air-prep unit. Export production logs to backup storage.
Semi-Annual
Full geometric re-survey of cutting frame (laser alignment). Service A-frame pivots and replace pivot bearings. Replace pneumatic seals and contactor tips. Recertify wire-current sensor accuracy.
Annual
Major overhaul: servo encoder inspection, replace nichrome wire stock, recalibrate per ISO 9001 audit cycle, PLC firmware update if Siemens advisories apply, refresh operator training including FR-EPS handling.
Safety Features
CE certification per EN 60204-1 (machinery electrical safety) and EN ISO 13849-1 PLd (safety-related control systems)
Polycarbonate-glazed safety cage with redundant interlocks on every access door
Four emergency-stop mushrooms — Category 0 stop cuts PLC power within 100ms; full motion halt within 250ms
Thermal cutoff sensor on heating cabinet (>60°C) — auto-shutdown logged for QA audit
Per-wire current monitoring at 12% deviation threshold (tighter than SPQ-B 15%) — instant wire-break alarm
Optional Type 4 light-curtain per IEC 61496-1 for unattended-cell layouts
FR-dust extraction system meets ATEX zone-22 requirements for combustible-dust environments
Production logging timestamps every safety event for QC audit compliance
Product FAQ
The questions buyers ask most often before placing an order.
How does SPB-Q differ from SPQ-B in real production terms?
Three key differences: (1) A-type oscillation frame vs B-frame — the A-frame's servo-driven pivots eliminate wire flutter on dense material, holding ±0.3mm vs ±0.5mm; (2) 32 kW heating vs 26 kW — handles 30-45 kg/m³ FR-EPS that bogs down B-series; (3) 0.7mm wires + servo upgrades + premium HMI with audit logging. If you cut only standard 12-25 kg/m³ EPS, the SPQ-B is more cost-effective. If you do FR-insulation or QC-critical premium boards, SPB-Q pays back in lower reject rates.
Can SPB-Q cut graphite EPS (gray FR-EPS) without coating the wires?
Yes — the 0.7mm wires + active cooling fans + higher heating power keep the wires hot enough to vaporize FR additives before they coat. Field measurements on Knauf-style 30 kg/m³ graphite EPS show wire life 600-1000h before replacement (vs 250-400h on standard cutters). The pneumatic recovery loop is also sized for FR-dust handling.
What's the actual tolerance hold across a full 6,000mm block on 40 kg/m³ FR-EPS?
Lab measurements on 40 kg/m³ graphite EPS show ±0.25-0.30mm typical, well inside the ±0.3mm spec. On standard 25 kg/m³ EPS the SPB-Q can hold ±0.2mm. We ship calibration blocks with every machine for in-house verification on customer-side QC equipment.
Is the SPB-Q faster or slower than SPQ-B?
On the same density, SPB-Q is slightly slower (1-1.5 m/min vs SPQ-B's 2 m/min on 20 kg/m³) because A-frame oscillation has tighter pivot synchronization. On FR-EPS above 30 kg/m³, SPB-Q is 2-3× faster than SPQ-B because the SPQ-B has to slow down or stop. Net: SPB-Q wins on premium material, SPQ-B wins on commodity material.
What testing labs and certifications support SPB-Q output for premium insulation?
Customers in EU and North America have certified SPB-Q output for: EN 13163 (EPS thermal insulation), ASTM C578 (US insulation standard), Class B1/B2 fire rating per EN 13501, ISO 9001 production traceability. Our QC team works with your testing lab to validate the audit trail.
How long is wire replacement and re-tensioning on the A-frame?
Single wire replacement: 90 seconds with included tool. Full bank (60 wires): 2-4 minutes with the robotic wire-setting head. Re-tensioning all 74 wires to spec is a weekly maintenance task (10 minutes with the included torque tool).
Can I retrofit older SPQ-B machines to SPB-Q specs?
Partially — we can upgrade the wire-setting servo (Yaskawa Σ-7 swap), upgrade the HMI (Weintek MT8121iE), and upgrade the heating cabinet (32 kW kit). The A-frame itself is not a retrofit — it requires the full SPB-Q chassis. Cost for the partial retrofit is USD 8,000-15,000 depending on machine vintage.
What is the warranty on premium components?
Same as SPQ-B: 5 years on the cutting frame and welded steel structure. 12 months on PLC, HMI, servo drives, VFD, and pneumatic components (pass-through from Siemens/Weintek/Yaskawa). Consumables and wear parts are explicit list in the manual.
How is the machine packed and shipped?
SPB-Q ships in 2× 40HQ containers (A-frame disassembled into 4 sections, electrical cabinet separate, heating power cabinet separate). All steel surfaces oil-coated and shrink-wrapped against salt-air. Sensitive electronics in foam-lined wooden crates. Detailed assembly manual ships inside cabinet door + PDF.
What other ChinaEps machines complete an FR-insulation premium line?
Upstream: PE-1600 or PE-1800 pre-expanders sized for higher-density bead production + FR-additive mixing system. BM-1600 to BM-1800 block molding (high-density molds with reinforced platens). Downstream: SPB packing + bundle conveyor + labeling for export-grade output. Auxiliary: ATEX-compliant FR-EPS regrind silo, FR-additive dosing pump.
Build a Complete EPS Line
This machine integrates into the full ChinaEps production flow — upstream, downstream, and auxiliary equipment from one supplier.