Semi U Blades for Dozers / Crawler Tractors
Dymax Semi U Blades for Dozers feature 25-degree wing angles that push and retain more material than traditional straight blades. They are ideal for highly abrasive dozing operations, such as road construction, coal mines, and iron, copper or gold metal mines.
For even greater ruggedness, Dymax Semi U Dozer Blades can be armor-plated with Hardox® and replaceable wear parts.
Available for Caterpillar, Komatsu and Liebherr track dozers and wheel dozers. A Balderson family tradition since the 1930s.
Features & Options
- 25° wing angle.
- Includes replaceable OEM brand cutting edges.
- Fits factory outside mount push arms.
- Available with chrome carbide wear liner package for severe abrasion applications.
- Available with Hardox® 400 and Hardox® 500 wear package for high impact, abrasive applications.
- Available with white iron wear blocks, side replacement shrouds and other types of wear protection.
- Available with optional rock guards installed on the top moldboard assembly.
SPECIFICATIONS - TRACK DOZER MODELS
| Machine Size | Model Code Description Weight |
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| Cat D6, Komatsu D65 | DX-BL-SU-7.50x11ft-TD-10
Blade – Semi-U – 7.50 yd³ capacity x 11 feet wide – Track Dozer – Class 10. STANDARD FEATURES: replaceable bolt-on cutting edges, 25 degree wing angles, attaches to factory outside mounted push arms. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 3,100 lbs |
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| Cat D6 LGP or Wide Track Dozers | DX-BL-SU-9.00x13ft9-TD-10LGP
Blade – Semi-U – 9.00 yd³ capacity x 13 feet 9 inches wide – Track Dozer – Class 10 LGP Wide Track. STANDARD FEATURES: replaceable Cat pattern bolt-on cutting edges, 50″ overall moldboard height, for tractors with 4727314 bulldozer arrangement, GPS mount locations for Accugrade systems. Designed to fit a Cat D6 XE LGP track type tractor. Weight: 3,500 lbs |
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| Cat D6 LGP or Wide Track Dozers | DX-BL-SUVR-9.00x14ft-TD-10LGP
Blade – Semi-U Variable Radius – 9.00 yd³ capacity x 14 feet wide – Track Dozer – Class 10 LGP Wide Track. STANDARD FEATURES: replaceable Cat pattern bolt-on cutting edges, cone shaped variable radius moldboard, vertical slat guard on top moldboard, 25 degree wing angles, attaches to factory outside mounted push arms on LGP tractors. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 3,400 lbs |
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| Cat D7, Komatsu D85 | DX-BL-SU-9.00x12ft4-TD-20
Blade – Semi-U – 9.00 yd³ capacity x 12 feet 4 inches wide – Track Dozer – Class 20. STANDARD FEATURES: replaceable Cat pattern bolt-on cutting edges + end bits, vertical slat guard on top moldboard, 25 degree wing angles, attaches to factory outside mounted push arms on standard tractors, 60″ height. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. (WILL NOT FIT LGP TRACTOR) Weight: 4,000 lbs |
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| Cat D6 LGP or Wide Track Dozers | DX-BL-SUVR-10.2X14FT8-TD-20LGP
Blade – Semi-U Variable Radius – 10.20 yd³ capacity x 14 feet 8 inches wide – Track Dozer – Class 20 LGP Wide Track. STANDARD FEATURES: replaceable Cat pattern bolt-on cutting edges, cone shaped variable radius moldboard, vertical slat guard on top moldboard, 25 degree wing angles, attaches to factory outside mounted push arms on LGP tractors. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 4,650 lbs |
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| Cat D8, Komatsu D155 | DX-BL-SU-11.5x13ft7-TD-30
Blade – Semi-U – 11.50 yd³ capacity x 13 feet 7 inches wide – Track Dozer – Class 30. STANDARD FEATURES: fits Komatsu SIGMA (SINGLE STRUT) push arm group, blade mount locations features replaceable bushings, high strength AR400 moldboard group (non lined), Komatsu pattern bolt-on cutting edges with smooth finished end bits, replacement 18in wing sole plates with shims. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 6,700 lbs |
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| Cat D8, Komatsu D155 | DX-BL-SU-12.0x13ft1-TD-30
Blade – Semi-U – 12.00 yd³ capacity x 13 feet 1 inch wide – Track Dozer – Class 30. STANDARD FEATURES: replaceable bolt-on cutting edges with end bits, 25 degree wing angles, attaches to factory outside mounted push arms, 5ft 6in center moldboard height, vertical slat rock guard, HD weld in side cutters. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 6,800 lbs |
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| Cat D8 LGP or Wide Track Machine | DX-BL-SU-13.50x15ft-TD-30LGP
Blade – Semi-U – 13.50 yd³ capacity x 15 feet wide – Track Dozer – Class 30 LGP Wide Track. STANDARD FEATURES: replaceable CAT pattern bolt-on cutting edges (180″), 25 degree wing angles, attaches to factory outside mounted push arms, 5ft 6in center moldboard height, vertical slat rock guard, HD weld in side cutters. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 6,900 lbs |
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| Cat D9, Komatsu D275 | DX-BL-SU-17.70x14ft-TD-40
Blade – Semi-U – 17.70 yd³ capacity x 14 feet wide – Track Dozer – Class 40. STANDARD FEATURES: replaceable bolt-on cutting edges, 25 degree wing angles, attaches to factory outside mounted push arms. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 8,800 lbs |
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| Cat D9, Komatsu D275 | DX-BL-SUHD-17.7x14ft2-TD-40
Blade – Semi-U Heavy Duty Abrasion – 17.7 yd³ capacity x 14 feet 2 inches wide – Track Dozer – Class 40. STANDARD FEATURES: replaceable CAT bolt-on cutting edges, 25 degree wing angles, attaches to factory outside mounted push arms, AR400 liner package, vertical slat rock guard, solid steel side cutters. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 9,700 lbs |
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| Cat D9, Komatsu D275 | DX-BL-SU-17.9x14ft6-TD-40
Blade – Semi-U – 17.9 yd³ capacity x 14 feet 6 inches wide – Track Dozer – Class 40. STANDARD FEATURES: 25 degree wing angles, Komatsu bolt-on cutting edges with end bits, fits K brace push arm assembly, AR400 moldboard face for phosphate mining applications, outside sole plate edges. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 8,870 lbs |
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| Cat D10, Komatsu D375 | DX-BL-SU-24.20x16ft-TD-50
Blade – Semi-U – 24.20 yd³ capacity x 16 feet wide – Track Dozer – Class 50. STANDARD FEATURES: replaceable bolt-on cutting edges, 25 degree wing angles, attaches to factory outside mounted push arms. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 12,000 lbs |
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| Cat D10, Komatsu D375 | DX-BL-SUHD-24.20x16ft-TD-50
Blade – Semi-U Heavy Duty Abrasion – 24.20 yd³ capacity x 16 feet wide – Track Dozer – Class 50. STANDARD FEATURES: replaceable CAT bolt-on cutting edges, 25 degree wing angles, attaches to factory outside mounted push arms, heavy duty AR400 wear liner package, external white iron wear blocks. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 15,700 lbs |
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| Cat D11, Komatsu D475 | DX-BL-SUHD-35.5x18ft8-TD-60
Blade – Semi-U Heavy Duty Abrasion – 35.5 yd³ capacity x 18 feet 8 inches wide – Track Dozer – Class 60. STANDARD FEATURES: 25 degree wing angle, AR400 multisection liner package, replaceable CAT bolt-on cutting edges, fits outside mount push arms on Cat D11 Dozers, includes vertical slat rock guard, exterior AR400 wear plates and replaceable side cu. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 25,000 lbs |
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SPECIFICATIONS - WHEEL DOZER MODELS
| Machine Size | Model Code Description Weight |
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| Cat 824 | DX-BL-SU-9.0x15ft9-WD-20
Blade – Semi-U – 9.00 yd³ capacity x 15 feet 9 inches wide – Wheel Dozer – Class 20. STANDARD FEATURES: 25 degree wing angles, replaceable CAT bolt-on cutting edges with end bits, underside sole plate edge group, height 64 inches. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 6,670 lbs |
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| Cat 834 | DX-BL-SUHD-13.2x15ft4-WD-30
Blade – Semi-U Heavy Duty Abrasion – 13.2 yd³ capacity x 15 feet 4 inches wide – Wheel Dozer – Class 30. STANDARD FEATURES: replaceable bolt-on cutting edges and end bits, 25 degree wing angles, rear sole plate replaceable cutting edges, center spill plate with slot design, fits outside mounted push arms, 3/8″ AR400 wear liner package installed on moldboard face. NOT SUPPLIED: connector blocks, pins and retainers for attaching to push arms. Weight: 9,800 lbs |
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| Tiger 590 | DX-BL-SU-20.9x17ft9-WD-40
Blade – Semi-U – 20.9 yd³ capacity x 17 feet 9 inches wide – Wheel Dozer – Class 40. STANDARD FEATURES: replaceable Cat bolt-on cutting edges, uses (2x 9W6092, 2x 7T-9125, 1x 8E4196, 1X 8E4197), 25 degree wing angle, equipped with slotted top screen assembly, standard moldboard (0.50″ T1 steel), underside replaceable sole plate edge, uses (3x 135-9668), fits factory outside mount push arms. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 11,100 lbs |
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| Cat 844 | DX-BL-SU-24.9x19ft5-WD-50
Blade – Semi-U – 24.9 yd³ capacity x 19 feet 5 inches wide – Wheel Dozer – Class 50. STANDARD FEATURES: replaceable Cat bolt-on cutting edges, 25 degree wing angles, standard T1 moldboard group, underside replaceable sole plate edges, fits factory outside mount push arms. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 12,900 lbs |
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| Cat 844 | DX-BL-SU-24.9x20ft5-WD-40
Blade – Semi-U – 24.9 yd³ capacity x 20 feet 5 inches wide – Wheel Dozer – Class 40. FOR CATERPILLAR 844K WHEEL TRACTOR FITTING STANDARD OUTSIDE PUSH ARMS. STANDARD FEATURES: 245.09 in overall width x 81.60 in height, 5/8″ T1 steel moldboard group (non-lined), Cat style replaceable cutting edges and end bits, Cat replaceable sole plate cutting edges installed, vertical slots in moldboard group, with tubes, guards and clamps. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 13,000 lbs |
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| Cat 854 / Tiger 790 | DX-BL-SU-30.0x20ft9-WD-60
Blade – Semi-U – 30.00 yd³ capacity x 20 feet 9 inches wide – Wheel Dozer – Class 60. STANDARD FEATURES: 25 degree wing angles, HD moldboard group T1 face (non lined moldboard), replaceable bolt-on cutting edges and end bits, replaceable sole plate edge group, fits outside push arm group. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 18,500 lbs |
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| Cat 854 | DX-BL-SU-33.1x20ft7-WD-60
Blade – Semi-U – 33.1 yd³ capacity x 20 feet 7 inches wide – Wheel Dozer – Class 60. FOR CATERPILLAR 854G/K WHEEL TRACTOR FITTING STANDARD OUTSIDE PUSH ARMS. STANDARD FEATURES: 248.86 in overall width x 90.52 in height, 5/8″ T1 steel moldboard group (non-lined), Cat style replaceable cutting edges and end bits, Cat replaceable sole plate cutting edges installed, vertical slots in moldboard group, with tubes, guards and clamps. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 21,600 lbs |
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| Cat 854 | DX-BL-SUHD-33.1x20ft7-WD-60
Blade – Semi-U Heavy Duty Abrasion – 33.1 yd³ capacity x 20 feet 7 inches wide – Wheel Dozer – Class 60. FOR CATERPILLAR 854G/K WHEEL TRACTOR FITTING STANDARD OUTSIDE PUSH ARMS. STANDARD FEATURES: 248.86 in overall width x 90.52 in height, 3/8″ AR400 4 pieces moldboard liner package installed, 5/8″ T1 steel moldboard group (non-lined), Cat style replaceable cutting edges and end bits, Cat replaceable sole plate cutting edges installed, vertical slots in moldboard group, with tubes, guards and clamps. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 24,600 lbs |
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| Letourneau D950 | DX-BL-SU-35.0x20ft9-WD-60
Blade – Semi-U – 35.00 yd³ capacity x 20 feet 9 inches wide – Wheel Dozer – Class 60. STANDARD FEATURES: 25 degree wing angles, HD moldboard group T1 face (non lined moldboard), replaceable bolt-on cutting edges and end bits, replaceable sole plate edge group, fits outside push arm group. NOT SUPPLIED: connector blocks, pins and retainers that attach the blade to the push arms. Weight: 17,000 lbs |
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Design and specifications are subject to change without notice.
