ULTRA-PAC™ Series - DD28HF & DD34HF

Ingersoll-Rand introduces its newest line of high frequency vibratory asphalt compactors designed specifically for main-line paving contractors. The new DD-28HF and DD-34HF double drum vibratory compactors offer high performance in ergonomically styled compact packages. The ULTRA-PAC Series of compactors provide ultra performance in the three critical areas of Hot Mix Asphalt (HMA) compaction: productivity, density, and smoothness. Each DD-28HF and DD-34HF has been manufactured to make you successful on every job.

Productivity for Demanding Schedule

As a leader in the compaction industry, Ingersoll-Rand understands the needs of the Hot Mix Asphalt contractor. The DD-28HF and DD-34HF have the industry's best frequency rating for faster rolling speed in critical temperature- sensitive applications. These new compactors also feature the largest fuel and water capacities. This combination provides the longest and most productive operating intervals in their class, allowing the machines to work harder while you work smarter.

Density When it Counts - EVERY JOB
Optimum drum performance results from the ideal combination of amplitude, centrifugal force and frequency. The ULTRA-PAC's amplitude provides application versatility, the centrifugal force provides the energy necessary to achieve proper density, and the frequency provide proper impact spacing. The designed output results in the most effective and efficient compaction of the widest range of today's complex materials.

Smoothness Speaks For Itself
The changing complexity of asphalt mixes makes achieving smoothness challenging. The key to a smooth finished product is proper impact spacing with a smooth drum surface. The ULTRA-PAC's high frequency provides closer impact spacing at a faster rolling speed. Each drum is manufactured with robotic precision, machined across its entire surface, and receives a chamfered edge to produce a smooth, professional quality finish on every job. For tough, complex Hot Mix Asphalt conditions, choose the ULTRA-PAC Series for ultra-smooth performance.

The ULTRA-PAC Series has been designed to optimize operator comfort and safety. Isolation of the vibratory drums, positioning of the operator platform on the rear frame, plus 4-point isolation of the operator platform from the frame minimizes vibration feedback to the operator. The standard deluxe suspension seat can be adjusted forward and backward to increase comfort and slides horizontally to maximize visibility to the drum. The operator's platform is skid resistant with safety kick plates. Convenient grab handles allow access to the unit from both sides. The spring-applied hydraulically-released parking brake with test switch, Roll Over Protective Structure (ROPS), emergency stop switch, seat switch and propulsion control with neutral start are all designed to provide a safe work environment.

The DD-28HF and DD-34HF both have a large capacity 79-gallon (299 liters), rotationally molded, polyethylene water tank, which provides extended intervals between refills. The variable water flow control and spring-loaded, self-adjusting, rubber wipers distribute water evenly across each drum. The standard pressurized water system is equipped with hand-serviceable water nozzles through which water is filtered two times. In the automatic mode, water flow is activated only when the compactor is in motion to further extend refill intervals.

High curb and low side clearances allow for efficient maneuvering around curbing and other job site obstacles. Tubing is utilized in the drum area to provide superior wall, curb and guard-rail clearance. The ULTRA-PAC Series' small size, low sloping hood, and tight turning radius allow the compactors to function effectively in confined areas. The seat is positioned so that visibility to the rear of the compactor is maximized while maintaining excellent forward visibility.

The ULTRA-PAC Series has been designed with an extra emphasis on comfort, simplicity and ease of use. Propulsion and vibration controls are conveniently located to the right side of the operator's seat and slide side-to-side with the seat for total control in each position. Automatic vibration is a standard feature on the DD-28HF and DD-34HF. Drum vibration can also be controlled manually by a button on the propulsion lever.

The five daily check points are unobstructed and have been positioned to make preventative maintenance easy and effortless. The engine enclosure lifts easily, giving ground level access to the engine, radiator, battery, and filters. Color-coded service charts show detailed checkpoint locations, service intervals and proper lubricants.

The DD-28HF and DD-34HF feature an engine designed for the most demanding requirements. These compactors are equipped for full day operation with the fuel-efficient, quiet, liquid-cooled Kubota 46 hp engine. This reliable Kubota engine provides standard glow plugs for excellent cold weather starting characteristics and supplied high horsepower to weight ratios for superior operation in all conditions.

Ingersoll-Rand utilizes new technology with the standard Twin Lock system to provide unsurpassed gradeability and tractability. Twin Lock is a traction control and torque transfer system that provides superior drum control at all speeds an in both directions. In extreme grade applications, Twin Lock's drum synchronization minimizes the possibility of drum slippage which may cause imperfections on the mat's surface.

Drums are constructed of durable carbon steel with thick shells to provide a long life. Every ULTRA-PAC drum is machined to achieve maximum symmetry with edges chamfered for optimum performance on Hot Mix Asphalt. Each compactor offers the ideal combination of drum width, centrifugal force, frequency and amplitude to provide the most efficient compaction of HMA materials. This combination allows for the highest versatility and the best overall performance, making the ULTRA-PAC Series the contractor's first choice.

The DD-28HF and DD-34HF each have amplitude that was designed specifically for Hot Mix Asphalt compaction. The vertical travel of the ULTRA-PAC Series' drums effectively achieves density in tender and harsh mixes.

With centrifugal forces of 8000 lbs. (35.6 kN) and 8300 lbs. (37 kN), the DD-28HF and DD-34HF provide drum outputs necessary to achieve maximum density and smoothness in fewer passes. The forces are increased proportionally to match drum width with overall output ensuring maximum productivity. The operator can choose front drum vibration only, both drums vibration or static mode.

Each ULTRA-PAC model has the highest frequency in its class -4200 vpm. This frequency allows for optimum impact spacing at higher rolling speeds providing a smooth, dense, quality pavement. The ULTRA-PAC Series' frequency makes it the most productive and efficient class of compactors available.

4,200 vpm / 12 impacts per foot x 88 fpm = 4.0 mph (6.4 km/hr)

Options
Back-up alarm Beacon light Custom painting Work lights	FOPS (Falling Object       Protective Structure) Inside wipers Vandal cover