Autopave SF-4

Four-Track Concrete Slipform Paver

A four track 'mid-range' highway class paver that is designed for high production, multi-lane main highway projects.

Unmatched in paving performance in it's size and class, the SF-4 sets the industry standard for ride smoothness.

Features

Power Distribution System

Standard machine configuration includes six (6) axial piston-type hydrostatic pumps driven by engine-mounted (flex plate coupling) 4-place pump drive gearbox.

Pumps included: two (2) 100 cc, pressure-compensated, closed loop vibrator pumps; two (2) 100 cc, EDC-controlled plow/auger drive pumps; one (1) 100 cc, EDC-controlled track drive pump, operating through 4-way Posi-Trac® flow control valve; and one (1) open-loop pressure compensated L38 dedicated control circuit pump. Optional pumps are available for additional vibrators and added attachments.

Hydraulic Oil Filtration

The hydraulic system is protected by a 3 micron (a)1 filter between replenishing and main reservoirs. 3μ2 (n)3 return filters on track drive, auger drives and vibrator circuits and by 6μ (a) pressure and return filters on the AUX control system.

Drive System

Dual-range propelling system with variable hydrostatic drives for both forward and reverse. Paving range variable up to 30 ft/min (9 m/min). Travel range variable up to 60 ft/min (18 m/min).

EDC-controlled track drive and auger drive for accurate control of hydrostatic functions.

Tracks are driven hydrostatically through deep-reduction planetary gear reducers at a 257:1 ratio. Posi-Trac® flow divider control limits track slippage. Track length 8.33 ft (2,540 mm). D-4 undercarriage components with 18 in (457.2 mm) triple-grouser street shoes. 10 in (254 mm) leg barrels with 42 in (1,088.8 mm) vertical stroke.

Water System

Hydraulically-driven pump delivers 2,500 psi high-pressure water to hose and high-powered nozzle for clean-up and utility use. Onboard water storage capacity is 200 gal (758 L).

Grade Control

Hydra-mation® all-hydraulic control system is fully proportional. Pressure compensated, variable displacement pump provides hydraulic oil to the direct-acting servo-valve proportional sensors. Individual flow control at sensors for fine-tuning.

Elevation Control

Operator selection for automatic or manual mode. Four location control sensors with extendible mounting arms. Calibrated scale-adjusting hardware for each sensor. Standard control system arrangement includes equipment for four-point control (dual stringline), lock-to-grade for automatic reference control of elevation.

Steering

Operator selection for automatic or manual mode, forward or reverse. Right-hand or left-hand stringline steering control mounting. Separate operator selection for manual steering in transport mode. Calibrated scale hardware for adjusting sensor position and fine-tuning alignment. Two steering sensors standard. Remote manual steering switch located conveniently at each leg for set-up and transport loading.

Operator’s Console

  • Rubber-booted all-weather switches.
  • Joystick controls for plow/auger and travel/paving.
  • Synchronized sequential master pave and stop control.
  • Central keyed lock-out for electrical system.
  • Four operational stops at ground-level locations.
  • Selector switches for manual or automatic control of elevation or steering.
  • Roll-top lockable anti-vandalism console cover.
  • Entire console repositions for operation mode or recesses for transport.

Profile Pan

Profile pan end sections are equipped with hydraulic-powered overbuild adjustments to compensate for the various concrete mix designs and slumps.

Sideforms

Standard sideform group: hydraulic-powered vertical operating guillotine split sideform system. Allows independent control of front and rear side panel for “daysjoint,” 0-18 in (457 mm) vertical raise operating range with ground-level remote operating stations. Paving Dimensions

Hydraulic Vibrators & Manual Controls

Lo-density® hydraulic plumbing for reduced lines per circuit; single return circuit used for vibrator manifold reducing number of hydraulic lines. Twenty-four (24) vibrator circuits, vibrator manifold mounted to kit frame; vibrator circuits individually controlled electronically through potentiometers mounted on operator center console. Twenty (20) hydraulic internal paving vibrators suspended on parallelogram linkage, hydraulically adjustable from operator’s console.

Plow

Concrete distribution is provided by hydraulic-powered spreader plow which is adjustable in height and travel speed. Spreader plow mounting and drive frame telespcopes hydraulically with paver frame providing width adjustments to meet profile requirements without additional bolt-in sections. Speed/directional controls operated at console by use of a single joystick.

Options

  • Polyurethane track pads
  • Hydraulically powered guillotine track guards
  • Metric dimension paving kit — 3.5 to 7.5 m (standard) 1 m (optional)
  • Integral right- and left-hand curbforms
  • Hydraulic curbform block-off
  • Center-line tie-bar inserter
  • Side tie-bar inserter for various style tie bars
  • Paving unit extensions in U.S. or metric dimensions
  • Propelling unit extensions: 6 ft (1,829 mm) and 7 ft (2,134 mm). Special extension available
  • Additional vibrators and controls: long eccentric, high-energy vibrators
  • Oscillating float finisher with automatic microprocessor controls
  • Tamper bar
  • Auger system in lieu of plow
  • Strike-off
  • Auxiliary hydraulic supply pump (for rear-mounted attachments)
  • Auxiliary water system (for use with burlap drag)
  • Metal keyway former, right- and left-hand side
  • Adjacent-slab paving attachment
  • Adjacent-slab steering attachment

Specifications

paving dimensions

paving width

ft / ins

12’ to 24’

mm

3,658 to 7,320

paving width

with optional extensions

ft / ins

up to 34’

mm

up to 10,363

overall paving length

ft / ins

31’ 11”

mm

9,730

paving depth

ft / ins

up to 18”

mm

up to 457

height

ft / ins

12’ 11”

mm

3,900

height + paving depth

ft / ins

13’ 8”

mm

4,170

transport dimensions

shipping WIDTH (24’ paving)

ft / ins

12’ less paving assembly

mm

3,660

track footprint loading width

ft / ins

8’

mm

2,440

shipping Height

ft / ins

10’ 9”

mm

3,280

weight

basic tractor

lbs

69,000

kgs

31,298

paver

lbs

99,000

kgs

44,906

ENGINE

MODEL

CAT Diesel

POWER @ 2,200rpm

hp

350

kW

260

capacity

in³

537

L

8.8

hydraulic power

Pump drive

4-port

No. of pumps

6

tracks & Legs

track width

ft / ins

18”

mm

457.2

track length

ft / ins

8’ 4”

mm

2,540

DRIVE SYSTEMS

operating SPEED RANGE

ft/min

0 - 30

m/min

0 - 9

TRAVELLING SPEED RANGE

ft/min

0 - 60

m/min

0 - 18

fluid capacity

fuel tank

gal

180

L

681

HYDRAULIC oil tank

gal

63

L

238

HYDRAULIC replenishing

gal

10

L

39

engine oil

gal

6.5

L

34

engine coolant

gal

10.5

L

40

aux water supply

gal

200

L

757

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