Close Proximity Machine Warning Sticker – OSHA-Style Header

C-003O

This close proximity machine warning sticker carries the message “Never stand in close proximity to machine without operator's knowledge.” Its OSHA-style oval DANGER header sits above a two-panel layout, with a person beneath a bar and three downward arrows on the left and the warning text on the right.

Printed Close Proximity Warning

DANGER

Never stand in close proximity to machine without operator's knowledge.

This is the wording printed on the decal. It does not mean that the operator's knowledge alone makes it safe to stand near machinery. Follow the equipment manufacturer's instructions and site procedures for approaching equipment and staying clear of moving parts.

Warning Decal Details

  • Size: 4¾ inches wide × 3¾ inches tall
  • SKU: C-003O
  • OSHA-style oval DANGER header without a triangular alert symbol
  • English-language red, black and white design
  • Created, printed, cut and shipped in the USA

Choosing the Header Design

C-003O uses an OSHA-style oval header. For the same warning with an ANSI-style rectangular header and triangular alert symbol, see the C-003 close proximity warning sticker. Both measure 4¾ inches wide × 3¾ inches tall. These terms distinguish the header designs; they are not a certification or a guarantee of compliance.

Compare the complete wording, dimensions and layout with your equipment's specified replacement label. This is a warning decal, not a proximity sensor, physical barrier or complete swing-radius marking system. It does not establish a safe approach distance or replace work-area controls, training or manufacturer instructions.

Recommended Placement

Because this warning addresses people approaching the machine, we recommend a visible fixed exterior panel facing the relevant approach area, readable before entering a swing or crush zone. For cranes and boom trucks, follow the manufacturer's decal map for the particular chassis, pedestal or superstructure location. An interior cab label alone may not communicate the warning to ground personnel.

These are general recommendations, not verified factory positions for every model. Preserve the original warning-label location when known. Do not place the decal where reading it requires entering a hazard area, or cover rating plates, controls or other warnings. Follow the decal's application instructions and prepare a clean, dry mounting surface.

Browse the crane and boom truck safety decals collection for related warnings. For a kit option, see the crane and boom truck safety sticker kit and review its included labels before ordering.

C-003O measures 4¾ inches wide × 3¾ inches tall.

It reads: “DANGER. Never stand in close proximity to machine without operator’s knowledge.”

C-003O has an OSHA-style oval Danger header without a triangular alert symbol. C-003 has an ANSI-style rectangular Danger header with the triangle. Both carry the same warning and measure 4¾ × 3¾ inches. Header terminology describes the design, not certification or guaranteed compliance.

No. It does not provide a distance or mean that operator awareness alone makes approaching safe. Follow the equipment manufacturer’s instructions and applicable site procedures.

As general guidance, use a visible fixed exterior panel facing the relevant approach area, readable before entering a swing or crush zone. Follow the manufacturer’s decal map and preserve the original location when known. An interior cab label alone may not communicate this warning to ground personnel. Do not position the decal where reading it requires entering a hazard area.

Technical & Safety Data

Product Composition & Identification

Film Construction: 2.75 mil Polymeric Calendered Vinyl base paired with a 2.75 mil flexible clear Polymeric Calendered Vinyl overlaminate.

Adhesive System: Clear Solvent-Based Permanent Pressure Sensitive Acrylic.

Total Adhesive Thickness: 2.3 mil combined (1.2 mil base and 1.1 mil laminate).

Health, Safety & Regulatory Compliance

Fire Rating: Class A fire rating under ASTM E84-17 testing.

Commercial Safety: Meets the highest life safety requirements for indoor and outdoor commercial graphics.

Toxicity & Structure: Phthalate-Free Film Structure.

Regulatory Standards: Meets the health and safety requirements set forth by CPSIA, REACH, RoHS, and California Proposition 65.

Physical & Chemical Properties

Chemical Resistance: Resists mild acids, mild alkalis, solvents, and salts.

Moisture Resistance: Excellent resistance to water, including full immersion.

Tensile Strength: 12.5 Pounds/Inch.

Dimensional Stability: 0.020 Inch (Machine Direction).

Peel Adhesion: 4.5 Pounds/Inch from Stainless Steel.

Environmental & Temperature Tolerances

Operating Temperature Range: -40°F to 190°F.

Application Temperature: 50°F to 80°F recommended.

Installation Surface: Clean, dry, and free of dust, dirt, debris, or grease.

Outdoor Lifespan: Up to 5 years permanent durability.

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