Construction excavator Heavy duty skeleton bucket

Enstruc Heavy Duty Skeleton Buckets are designed for precision material sorting, separation, and loading in demanding construction and earthmoving environments. Built for excavators up to 52 tonnes, these riddle buckets combine a reinforced frame structure with abrasion-resistant ribs and side plates. The open-grid design improves visibility, reduces material waste, and delivers strong handling performance in rocky, sandy, or mixed material conditions.

Key Features

  • Open-grid bucket design enables fast material sorting on-site
  • Custom rib spacing provides accurate separation for mixed materials
  • Reinforced bucket structure and wear protection extends service life
  • High-strength lip system delivers reliable penetration in compacted ground
  • Abrasion-resistant side wear plates extend life in rocky conditions
  • Designed for 10-52 tonne excavators across all leading OEM brands
  • Replaceable teeth, lip, wing, and heel shrouds for easy maintenance
  • OEM pickup geometry ensures smooth operation and secure fitment

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Specifications and sizes

View DataHide Data
CategoryPart NumberMachine ClassWidthCapacityTine SpacingWeightTeeth
Category100Part NumberHDSK1015E36Machine Class24,000 - 33,000 lbs10 - 15 tonneWidth36 ''914 mmCapacity0.72 yd30.55 m3Tine Spacing3.75 ''95.25 mmWeight1160 lbs526 kgTeeth5
Category100Part NumberHDSK1015E48Machine Class24,000 - 33,000 lbs10 - 15 tonneWidth48 ''1219 mmCapacity0.98 yd30.75 m3Tine Spacing3.75 ''0.00 mmWeight0 lbs0 kgTeeth6
Category150Part NumberHDSK1520E36Machine Class33,000 - 45,000 lbs15 - 20 tonneWidth36 ''914 mmCapacity0.90 yd30.68 m3Tine Spacing5.50 ''139.70 mmWeight1230 lbs558 kgTeeth5
Category150Part NumberHDSK1520E42Machine Class33,000 - 45,000 lbs15 - 20 tonneWidth42 ''1067 mmCapacity1.08 yd30.83 m3Tine Spacing5.50 ''139.70 mmWeight1475 lbs669 kgTeeth5
Category200Part NumberHDSK2025E42Machine Class45,000 - 55,000 lbs20 - 25 tonneWidth42 ''1067 mmCapacity1.23 yd30.94 m3Tine Spacing5.50 ''139.70 mmWeight2105 lbs955 kgTeeth5
Category200Part NumberHDSK2025E48Machine Class45,000 - 55,000 lbs20 - 25 tonneWidth48 ''1219 mmCapacity1.42 yd31.09 m3Tine Spacing5.50 ''139.70 mmWeight2150 lbs975 kgTeeth6
Category250Part NumberHDSK2530E42Machine Class55,000 - 65,000 lbs25 - 30 tonneWidth42 ''1067 mmCapacity1.42 yd31.08 m3Tine Spacing5.50 ''139.70 mmWeight2575 lbs1168 kgTeeth5
Category250Part NumberHDSK2530E48Machine Class55,000 - 65,000 lbs25 - 30 tonneWidth48 ''1219 mmCapacity1.65 yd31.26 m3Tine Spacing5.50 ''139.70 mmWeight2610 lbs1184 kgTeeth6
Category250Part NumberHDSK2530E54Machine Class55,000 - 65,000 lbs25 - 30 tonneWidth54 ''1372 mmCapacity1.87 yd31.43 m3Tine Spacing5.50 ''139.70 mmWeight2645 lbs1200 kgTeeth6
Category300Part NumberHDSK3040E48Machine Class65,000 - 90,000 lbs30 - 40 tonneWidth48 ''1219 mmCapacity2.08 yd31.59 m3Tine Spacing5.50 ''139.70 mmWeight3590 lbs1628 kgTeeth5
Category300Part NumberHDSK3040E54Machine Class65,000 - 90,000 lbs30 - 40 tonneWidth54 ''1372 mmCapacity2.36 yd31.80 m3Tine Spacing5.50 ''139.70 mmWeight3810 lbs1728 kgTeeth5
Category300Part NumberHDSK3040E60Machine Class65,000 - 90,000 lbs30 - 40 tonneWidth60 ''1524 mmCapacity2.66 yd32.03 m3Tine Spacing5.50 ''139.70 mmWeight4030 lbs1828 kgTeeth6
Category400Part NumberHDSK4052E60Machine Class90,000 - 115,000 lbs40 - 52 tonneWidth60 ''1524 mmCapacity3.07 yd32.35 m3Tine Spacing6.00 ''152.40 mmWeight5525 lbs2506 kgTeeth5
Category400Part NumberHDSK4052E72Machine Class90,000 - 115,000 lbs40 - 52 tonneWidth72 ''1829 mmCapacity3.76 yd32.87 m3Tine Spacing6.00 ''152.40 mmWeight6365 lbs2887 kgTeeth7
Category400Part NumberHDSK4052E78Machine Class90,000 - 115,000 lbs40 - 52 tonneWidth78 ''1981 mmCapacity4.44 yd33.39 m3Tine Spacing6.00 ''152.40 mmWeight6785 lbs3077 kgTeeth7

Frequently Asked Questions

The skeleton bucket, also known as a riddle or sieve bucket, is designed for separating rock, soil, and debris during site clean-up, recycling, and excavation. Commonly used on construction, demolition, and utility projects.
Performs well in mixed soil, sand, gravel, and rock where material separation is required. For compacted or abrasive ground, consider the Enstruc Severe Duty or Extreme Duty Buckets.
Yes. Rib spacing can be specified to match material type, allowing finer or coarser separation depending on your project.
Enstruc's HD Skeleton Bucket is designed for 10-52 tonne class excavators. The bucket is compatible with Cat 310, 313, 315, 317, 320, 323, 325, 326, 330, 335, 336, 340, 350, 352; Case CX130, CX160, CX180, CX210, CX250, CX300, CX350, CX370, CX490; Develon DX140, DX160, DX210, DX225, DX230, DX235, DX245, DX255, DX260, DX300, DX350, DX420, DX490, DX530; Hitachi ZX130, ZX135, ZX160, ZX180, ZX210, ZX220, ZX225, ZX240, ZX250, ZX280, ZX300, ZX330, ZX350, ZX375, ZX470, ZX490, ZX530; Hyundai HX130, HX140, HX145, HX160, HX180, HX210, HX220, HX235, HX260, HX300, HX330, HX360, HX380, HX400, HX480, HX520; Kobelco SK130, SK140, SK165, SK180, SK210, SK230, SK260, SK300, SK350, SK400, SK520; Komatsu PC130, PC138, PC170, PC210, PC220, PC240, PC290, PC360, PC390, PC490; Liebherr R914, R918, R920, R922, R924, R926, R928, R930, R934, R936, R938, R945, R950; Sany SY135, SY155, SY215, SY245, SY265, SY305, SY330, SY335, SY365, SY375, SY390, SY415, SY500, SY550; and other similar models.
No. Routine inspection and replacement of teeth, lip shrouds, sidebar protectors, and heel blocks are sufficient to maintain bucket performance.
For general work, see our General Purpose or Heavy Duty Bucket. For finishing and shaping, consider the Ditching or Grading Buckets.

Talk to our team

Tell us your excavator model and working conditions. We’ll confirm the right Skeleton Bucket configuration and provide your quotation.