SD-691 Pavement Marking System

The SD-691 Pavement Marking System provides a safe and efficient method of applying 3M™ Stamark™ High Performance pavement marking tape to road surfaces. Designed as a ride-on, self-propelled application system, the SD-691 brings operators off the roadway while delivering accurate, consistent tape placement.

Positive application and cut-off are achieved through a specially designed heavy-duty applicator, ensuring consistent results across asphalt and concrete surfaces. The SD-691 combines engineered durability with operator safety to support dependable field performance.

Overview

High-Productivity Marking Made Safer

The SD-691 is an accurate, high-productivity pavement marking system designed to improve both safety and operational efficiency. By positioning the operator on the machine rather than in traffic, the system significantly reduces operator exposure to live road conditions.

Its self-propelled design, robust mechanical construction, and precise tape control allow contractors and road agencies to complete marking operations with confidence, even in demanding environments.

Safety Through Smart Design

The SD-691 prioritizes operator protection without sacrificing productivity. Features such as ride-on operation, consistent tape tension control, and controlled cut-off mechanisms reduce manual handling and variability in the application process.

The result is a pavement marking system that enhances safety, improves consistency, and supports efficient project execution day after day.

One System — Proven Pavement Applications

The SD-691 is purpose-built for pavement marking operations using 3M™ Stamark™ High Performance Tape. Its design supports accurate tape placement across common road marking scenarios and integrates key control functions directly into the system.

Core capabilities include:

  • Skip line controller for consistent marking patterns
  • Micro-steering for accurate tape placement
  • Adjustable rear drive allowing application on either side, within 6 inches of a curb
  • Compatibility with asphalt and concrete surfaces

These features allow the SD-691 to adapt to a wide range of roadway marking requirements while maintaining precision and control.

Built to Support Field Demands

The SD-691 is configured to support efficient field operation, durability, and operator convenience, including:

  • Tape widths from 4″ to 12″
  • Consistent tape tension control regardless of roll size
  • Rear deck storage for up to two rolls of tape
  • Fold-down overhead light bar
  • On-board air compressor with tank
  • Variable-speed hydrostatic transmission

Every element of the system is engineered to support repeatable application and dependable performance in real-world conditions.

Performance & Standards

  • Designed for 3M™ Stamark™ High Performance pavement marking tape
  • Ride-on, self-propelled application system
  • 25 horsepower Kohler engine
  • Engine shut-off safety system if operator is not on the platform
  • Robust fixed-knife cutting mechanism
  • Adjustable rear drive for left- or right-side application
  • Maximum recommended application speed: 5 mph

Custom Solutions & Partnership

Need a Different Tape Application Solution?

If the SD-691 does not fully meet your application requirements, Straub Design offers engineered tape solutions across multiple industries, including automotive, packaging, solar, and building materials.

If a standard applicator isn’t the right fit, Straub Design can design, build, and install a customized solution tailored to your specific process and operating environment.

Interested in the SD-691 Pavement Marking System?

Give us a challenge. We’ll deliver the tape application system that’s exactly what your business requires.