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Compactor Design Guide

Compactor Types & Functions

Sizing & Selection

Construction Design & Materials

Structural Features

Control Features

Power Unit Features

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Tailoring to the Application: Control Features

SP Industries offers a diverse range of design features that provide maximum configurability to meet specific application requirements. Primary control features are standard equipment on all SP compactors with no additional cost. Less frequently required optional control features are extra charge items, but readily available to add to your system without additional lead-time.

  • Standard Features
  • Optional Features

Automatic Safety Retract Start

This built in safety feature causes the ram to retract when the machine is started unless the ram is already in the retracted position, then the ram will move forward when the machine is started. Note: This feature is not available on self-contained compactor/container models which utilize a manual reverse button.

Automatic Shut-Off

When the container is full or the compactor is jammed during the forward stroke, the machine will automatically shut off within 60 seconds or less and a red indicator light will illuminate at the control station.

Automatic Multicycle Operation

The compactor can be set to run one or multiple cycles automatically when started. The number of cycles is determined by the setting on the cycle timer (1TR) located in the main control panel.

Automatic/SM PC (Sustained Manual Pressure Control) Selector Switch

This toggle switch, located inside the main control panel, allows the compactor to be operated in either the automatic or SMPC mode. A compactor must have an ANSI/OSHA approved hopper or guard system installed to be shipped in the automatic position. This item is standard on most machines and optional on units such as the self-contained compactors/containers, precrusher compactor models, CP- 711 and the APT-331.

Full Load Indicator

A light located inside the mushroom emergency stop button illuminates when the container is full or the compactor is jammed in the forward position. The indicator is a separate light on precrusher/compactors and is not available on self-contained compactor/ container, pressure switching systems. 

Key Lock Start

The keyed switch is the Off/On power switch for compactor operation. When the switch is in the "Off" position, the system is off except for oil heaters. When the switch is in the "On" position the system is live and the machine can be started. To disable the complete system the main disconnect must be locked out and tagged per OSHA standards.

Key Operated Jog Controls

These controls come standard in the main panel on heavy industrial machines; they are available as an option an all other equipment. They provide manual forward and backward operation of the ram. As an option, controls can be mounted on the machine at the left or right front of the charge opening. Note: These controls will not override the shut-off pressure. A Pinning Boost/Override control must be used to override shut-off pressure.

Pinning Boost/Override System

This key operated control allows manual operation of the ram. The Pinning Boost Override system gives the system added operating pressure to clear the compaction chamber when the container system is full and allows the operator to pin off a container when optional pinning tunnels are provided. These controls are standard for 6,7,8, and 13 cu. yd. heavy industrial compactors and all precrushers. They are normally mounted on the machine near the front left of the charge chamber (drivers side).

Precrusher Gate Up/Down Controls

These controls are located with the pinning boost/override controls and allow manual up and down movement of the precrusher gate. 

Green Start Button

This "push to start" button is used to begin the cycling of the compactor. This operation only starts the compactor when the key lock switch is in the "on" position.

Ram Position Switch

This toggle switch, located inside the main control panel, stops the ram in the desired position, front or rear of the compaction chamber, at the end of the cycle. Note: This feature is not available on self-contained compactors/containers, precrusher/ compactor models, CP-711 and APT-331 models.

Remote Control Head

remote control headThe remote control head is standard on all heavy duty industrial compactors and precrushers. They are optional on commercial compactors. Remote controls are supplied with ten feet of electrical flexible conduit, longer lengths are available. The NEMA 4/13 Indoor/Outdoor control box includes the Key Lock Off/ On Switch, Green Start Button, Emergency Stop Button and the Full Load Indicator. The Full/ Jam Indicator Light is located in the center of Emergency Stop Button.

Voltage Selection

All motors up to 10 HP may be wired to connect to a 208, 230 or 460 volt, 3 phase, power supply source. Motors which are 15 HP or larger are manufactured to be wired for 230 or 460 only; however, 208 voltage motors are available up to 30 HP and must be specified on the order. Caution: To change from one voltage to another, the motor and transformer must be rewired, primary fuses changed,motor starter changed, and the corresponding thermo overload protection (heater) must be changed. Larger wiring may be required if changing from higher to lower voltage. 

 

Advance Full Load Indicator

An adjustable pressure actuated switch turns on an amber light in the control head or panel when the container is approximately 95%, 85%, or 75% full, a relay keeps the light on until the circuit is broken. This allows time for the hauler to be contacted before the container is completely full.

Code Start System

A keyless/coded start system which only allows access to compactor operation after a four digit code has been entered.

Infrared Start System

A system which uses an infrared emitter and receiver to begin the compaction cycle. When the signal is broken the cycle begins. The system is supplied with a safety delay warning feature (per current ANSI Z245.2 specifications) which includes a 5 second, audible warning buzzer, and a 15 second, flashing strobe light that operates before the machine begins cycling.

Key Operated Jog Controls

These controls come standard in the main panel on heavy industrial machines; they are available as an option an all other equipment. They provide manual forward and backward operation of the ram. As an option, controls can be mounted on the machine at the left or right front of the charge opening. Note: These controls will not override the shut-off pressure. A Pinning Boost/Override control must be used to override shut-off pressure. 

Low Oil/High Temperature Indicator Light

If the hydraulic oil in the power unit becomes dangerously low, a red light in the main control panel will indicate the condition and the power unit will shut down. If the power unit system temperature becomes dangerously high, a red light in the main control panel will indicate the condition and the power unit will shut down. The system will not operate until the oil level is increased or the temperature has been reduced.

Photo Electric Start System

A system which starts a compaction cycle when the light beam across the chamber opening is interrupted. The system is supplied with a safety delay warning feature (per current ANSI Z245.2 specifications) which includes a 5 second, audible warning buzzer which sounds and a 15 second flashing strobe light that operates before the machine begins cycling.

Pinning Boost/Override System

This key operated control allows manual operation of the ram. The Pinning Boost Override system gives the system added operating pressure to clear the compaction chamber when the container system is full and allows the operator to pin off a container when optional pinning tunnels are provided. These controls are standard for 6,7,8, and 13 cu. yd. heavy duty compactors and all precrushers. They are normally mounted on the machine near the front left of the charge chamber (drivers side).

Secondary Remote Control Head

An additional remote control head can be supplied as a second control for an industrial compactor in order to operate the machine from more than one location, or it can be supplied as the main control head for a system with standard panel mounted controls. Controls must be mounted in accordance to ANSI Z245.2 safety standards.

Security Lock Latch

An electronic locking system which prevents unauthorized access to a compactor's dog house hopper and unauthorized use of the compactor. It is often used in conjunction with a code start system or after market monitor systems.

Thermo Oil Heater

The thermo oil heater is a thermostatically controlled hydraulic oil heater preset at a temperature of 55° F which facilitates operation in cold climates.

UL Certified Panel

The main electrical controls and panel are inspected and certified by a U.L. representative as conforming to U.L. #508 Standard for Safety for Industrial Control Equipment.