Efficient, Safe, High-Performance AGV Brakes

VERY THIN, POWERFUL AND PROVEN BRAKE DESIGN

The Original PK Brake… High torque in a compact space envelope

• Installed on more than 500,000 forklift trucks and aerial platforms in the field
• More than 30 key OEMs have adopted this solution since 2010
• Manufactured globally

The Very Thin (PK) range is a pre-assembled on/ off dry electromagnetic brake. This brake is used for parking and emergency as well as some service braking. The AC motor is used in combination with the PK brake for regenerative braking of the vehicle.

The brake can be fitted with various friction materials, in addition to standard are also available a high torque and high energy materials depending on the application. The coil can be designed for single or dual voltage and pulse width modulation power supply to reduce power consumption and maintenance.

The benefits of this cost-competitive range include:

• One-piece design for easy assembly
• Lower power consumption
• Longer battery life
• Overall lower maintenance costs

Features

• Multi-step braking versions available
• Low profile space saving design
• Dust cover option
• IP20 standard & IP43 with optional dual cover and end cap
• Available WES Sensor Option
• Electronic controller CAN BUS ready
• Outstanding W134 non-stick friction material

COMPACT STATIC BRAKE, THIN AND MODULAR

Catalogue and thickness adaptive design for easy and flexible integration with parking brake functionality

Both our imperial and metric product ranges are pre-assembled spring applied, on/off dry electromagnetic brakes. Models are highly reliable with various compact sizes for static engagement.

Warner Electric recently extended their range offering with new sizes to be customized in term of thickness vs static torque to fit all kind of integrations, brake sizes are quickly customized to be directly integrated inside the vehicle drive casting, in front or at the back of the motor with possibility to directly mount any encoder/electronic devices.

Features

• 10 Catalogue Sizes with fixed diameter but different length/torque/input voltage available
• Thin pro les down to 14mm, outer diameter down to 22mm
• 0.05Nm to 8Nm torque range
• Maximum inner diameter up to 48mm
• Various mounting options as magnet, flange or rear mount
• Optional direct encoder or other electronic devices with special location diameter and mounting hole(s)
• Noise reduction
• High quality corrosion protection, RoHs – Reach – CE - UL compliant
• Noise reduction & energy saving in option
• High quality corrosion protection, RoHs, Reach, CE compliant

COMPACT PRECISION BRAKE, HIGH SPEED AND LOW BACKLASH

The highest force-to-size ratio possible for servo integration with continuous duty, dynamic, high speed and temperature capabilities

Servo motor spring-applied, electromagnetically released brake series provide high torque at high working temperatures in small and non-ventilated space envelopes. The brakes feature stable and low backlash for extended life usage.

Design configuration is particularly suitable for traction/lifting axis using servo bldc motor with brake integrated close to the motor inside its frame or application requesting a specific braking distance or torque control, accurate positioning from 0 to 8000rpm.

Features

• 7 Standard Catalogue Sizes, compatible for most common servo motors frame size, power and speed
• Custom-engineered solutions for space critical applications with variable diameter – length – torque – electrical performance
• External Diameter from 32mm
• 0.20 to 100 Nm torque range
• Toleranced recesses for bearings and encoders
• Low/Zero Backlash
• Reduced Power Options
• Lead length, colour, connector and orientation for easy electrical integration
• Double disc, 2 x torque option, light weight, and small outer diameter

CONVERT A STANDARD BRAKE INTO A SMART BRAKE

Flexible embedded controller features plug & play integration

Ideal for fleet management systems, particularly on AGV applications, provides access to the auto-diagnosis brake component. Brake can be become fully controlled and monitored when it is also equipped with the WES sensor (wear diagnosis).

Features

• Over-excitation control
• AEC-Q100 ready
• Accurate brake control and IOT feature add on
• PNP Inputs/Outputs
• CAN BUS ready
• Various versions from 8VDC up to 400VAC
• IP67 rated

The WES contactless monitoring solution provides reliable detection of the smallest strokes, especially on spring-applied brakes. Made without sensitive mechanical parts, it greatly outperforms electromechanical solutions in functional safety and lifecycle expectancy. Additionally, this contactless monitoring solution reports state and wear information.

Features

• Compact design
• Accurate sensing: Hysteresis < 0.05 mm over the full range of temperature
• Operating temperature -40°C to 105°C
• Three outputs available:
  • NPN type: with an integrated pull-up resistor that simplifies the integration in almost all PLC-based installations
  • NO/NC type: a highly isolated SSR relay that provides backward compatibility with almost all dry contact switches on the market (depending on voltage and current)
  • Analog ratiometric type: provides real time wear detection that measures brake air gap

ENHANCE PERFORMANCE WITH ADVANCED FRICTION MATERIALS

Altra engineers have developed a proprietary NON-STICK friction material specifically designed for cold room and outdoor environments with high moisture levels and wide temperature differentials.

Most standard friction materials tend to get sticky and loose their effectiveness in these cold, harsh conditions.

Altra’s new friction material has proven to retain stable torque in between static parking and high energy service and emergency stopping during rigorous climate chamber testing, endurance testing, and field testing.

A high performance grade friction material is also offered for more challenging applications.