Brick Stack Grapples for Crane

KM 332-V
The characteristics of the Brick Stack Grapples KM 332, KM 333 and KM 331:
The technically unique KM 332 brick stack grapple with hydraulic parallel squeeze is a versatile tool for palletized and non-palletized materials – available with rigid or adjustable (V) plunge depth.
The KM 333 is the reinforced type, also as rigid or adjustable (V) version.
Both versions are versatile tools with synchronized arms that feature safety of work, an easy use and a long service life. The compression rails are equipped with durable and replaceable rubber inserts.
The robust brick stack grapple KM 331 handles palletized and non-palletized materials up to 2000 kg / 4400 lbs. It features a fixed plunge depth with pivot, synchronized clamping arms - hydraulically operated. The overall height is reduced due to lower rotator position. The compression rails are equipped with durable and replaceable rubber inserts.

Brick stack grapples with adjustable plunge depth:
- KM 332V-1100 available in plunge depth 1100 to 1650 mm / 43 to 65 in as complete package: brick stack grapple, rotator, short hoses, upper suspension, compression rails 1000 mm / 39.4 in, non-return and pressure relief valves.
- KM 332V available in plunge depths 850 to 1400 mm / 34 to 55 in and 1100 to 1650 mm / 43 to 65 in as single attachment.
- KM 333V reinforced version available in plunge depth 1100 to 1650 mm / 43 to 65 in as single attachment.
Brick stack grapples with rigid plunge depth:
- KM 332-1000 available in plunge depth 1000 mm / 39 in as complete package: brick stack grapple, rotator, short hoses, upper suspension, compression rails 1000 mm / 39.4 in, non-return and pressure relief valves.
- KM 332 available in plunge depths 850, 1000 and 1300 mm / 34, 39 and 51 in as single attachment.
- KM 333 reinforced version available in plunge depths 850 and 1000 mm / 34 and 39 in as single attachment.
- KM 331 available in plunge depths 1000, 1100, 1200 and 1300 mm / 39, 43, 47 and 51 in as single attachment.
FAQs
The robust KM 331 brick stack grapple for cranes is suitable for single or palletised loads up to 2,000 kg and features a fixed immersion depth as well as synchronised, pivot-mounted grabbing arms. Thanks to the lower-mounted rotator, the overall height is reduced. The pressure rails are equipped with replaceable rubber inserts.
The KM 332 brick stack grapple offers a hydraulically adjustable opening width for palletised and non-palletised construction materials. It is available with a fixed plunge depth (850–1,300 mm) or as an adjustable version (KM 332V, 1,100–1,650 mm). Complete packages such as the KM 332-1000c include rotator and valves.
The KM 333 is the heavy-duty version of the KM 332 for heavier loads. It is available with a fixed (850–1,000 mm) or adjustable immersion depth (1,100–1,650 mm). Synchronous arm movement and an overpressure valve ensure safe handling with the crane stone stacking grab.
The stone grabs for cranes are designed for lifting capacities up to 2,200 kg with opening widths from 400 to 1,400 mm, optionally up to 1,800 mm. This makes them suitable for concrete elements, kerbstones, or brick bundles. The adjustable immersion depth adapts to different loading heights.
Accessories for stone stacking grabs for cranes include folding devices (KM 381 08), height stops (KM 381 05), spring-loaded guide rails (KM 381 06), and manhole ring inserts for rings from 800–1,350 mm. These increase safety and handling efficiency.
Models such as the KM 332V-1100c include the stone stacking grab, rotator, hoses, suspension, compression rails, as well as check and pressure relief valves. Operating pressure: 200–370 bar at 40–75 l/min – ready for immediate crane use.






