Solid Polycarbonate Sheet
Clear, tinted or finished solid PC sheet for flat panels and fabricated parts, made to your dimensions.
Machine Guarding Polycarbonate
Machine guard PC panels: assess hazard energy, frame capture, chemicals and assembly evidence before choosing thickness.
Need a clear polycarbonate window or a cut-to-drawing guard panel? SinoPlastix supplies custom PC sheet and CNC-finished parts for machine builders and replacement programs. Send the opening size, frame section and operating exposure with the drawing; we can return a material and fabrication quotation and identify the original test reports applicable to the offered grade.
Send a guard-panel drawing See clear solid PC sheet
Choose the panel for its job
“Machine guard” covers several different duties. A viewing insert, a coolant splash screen and a panel expected to retain a released part do not have the same design evidence. The machine builder or integrator defines the hazard and approves the installed guard; our quotation defines the PC material and finished part supplied.
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| Panel duty | What to send | Useful PC starting point | Decision still needed |
|---|---|---|---|
| Routine viewing | Clear opening, sight line, glare and cleaning method | Clear solid PC; ask for a viewing sample if optical appearance matters | Confirm the guard function, frame and access distances |
| Coolant or chip splash | Coolant and cleaner names, temperature, exposure time and spray direction | Solid PC; consider a hard-coated surface where cleaning abrasion is the concern | Check chemical compatibility on the offered grade and service procedure |
| Potential flying part or fragment | Machine hazard assessment, likely object mass/speed and impact location, frame section and test requirement | Custom solid PC panel and captured-edge design for the integrator to assess | Approve the complete panel-and-frame assembly against the specified hazard |
| Electrical or ESD-controlled area | Required fire classification or surface-resistance target and test method | Ask for the relevant FR PC or ESD PC grade | Match any report to the exact offered grade, thickness and test conditions |
ISO 14120:2015 gives general requirements for selecting and constructing fixed and movable machine guards; interlocking devices have a separate standard. ISO 13857:2019 addresses safety distances from accessible openings. These are design references for the integrator, not a claim that a loose PC sheet is a certified guard. An OSHA safety bulletin on replacement observation windows documents why substitute glazing must meet the machine maker’s original guard requirements.
Turn the opening into a part drawing
Show the finished visible opening and overall panel size separately. Add the frame cross-section, edge capture on each side, gasket, fastener positions, holes or slots, clearance to moving parts and access doors. For a replacement window, provide the original part drawing or material specification if available. A flush-cut rectangle can be quoted from a dimensioned sketch; machined holes, pockets or complex profiles need a DXF, DWG or STEP file with tolerances and revision.
For handling, a representative solid PC density of 1.20 g/cm³ gives a sheet-only mass of about 7.2 kg/m² at 6 mm. An 800 × 600 × 6 mm flat panel is therefore about 3.5 kg before frame, coating and hardware (0.8 × 0.6 × 0.006 m × 1,200 kg/m³). This is an estimating example, not a projectile rating or a recommended guard thickness. Confirm the quoted grade and finished dimensions before using it in the assembly design.
- 1. HazardMachine type, operating mode, possible released object and required guarding function
- 2. AssemblyClear opening, support, edge capture, fasteners, access and interlock arrangement
- 3. MaterialGrade, thickness, optical needs, coolant, cleaner and service exposure
- 4. AcceptanceApplicable test or original machine specification and inspection plan
What SinoPlastix can quote
We can supply made-to-order clear or specified PC sheet, cut panels and CNC-finished details; SinoPlastix operates 22 CNC machines. Send a drawing with panel IDs, quantities, edge finish, holes, protective-film face, packing order and delivery destination. We can arrange a sample for fit and viewing approval, and sales can supply applicable original material reports on request. The written quotation states the offered grade, finished dimensions, machining scope, price and lead time; actual terms depend on part complexity.
When the panel is expected to contain a fragment, ask the machine integrator to review the whole guard and any required test. Sheet data or a standalone impact test does not establish the installed guard rating. Inspect a scratched, clouded or cracked window under the machine’s maintenance procedure; do not infer remaining impact capacity from a generic replacement interval.
For stock options see solid PC sheet; for machined parts see polycarbonate CNC machining. The custom specification guide helps package a repeat-order schedule.
Questions buyers ask
What thickness should I use for a machine-guard window?
Send the hazard assessment, opening and frame drawing, potential released-object information and required test or original machine specification. We can quote a grade and thickness for review; the machine builder or integrator approves the complete guard assembly.
Can you make a replacement panel from our drawing?
Yes. Send the original part specification where available, plus a dimensioned drawing or DXF, DWG or STEP file showing finished size, holes, slots, edge finish, grade, quantity and tolerance. We will confirm the fabrication scope in the written quote.
Can I request the PC test report before ordering?
Yes. Tell sales the offered grade, thickness and required method so the applicable original report can be identified. Material results must be checked against the machine’s required panel-and-frame evidence.
How do coolant and cleaning chemicals affect selection?
Provide the chemical names, concentrations, temperatures, contact time and cleaning frequency. We can review the offered PC grade and sample approach; the machine owner sets inspection and replacement criteria for its actual service conditions.
Where to look next
Related pages
Flame Retardant Polycarbonate Sheet
Flame-retardant polycarbonate grades for specified uses; confirm classification, test method and smoke requirements for the offered sheet.
ESD / Anti-Static Polycarbonate Sheet
ESD sheet specified by surface-resistance target and panel use — for electronics assembly and equipment windows.
CNC & Laser Cutting
Compare CNC routing and laser edge requirements for polycarbonate parts before sending a drawing for production review.